Saitō, Saito, Saitou or Saitoh (written: 斎藤 or 斉藤) are the 10th most common Japanese surnames respectively.^[1] Less common variants are 齋藤, 齊藤, 才藤 and 齎藤. Notable people with the surname include:

• Koki Saito (斉藤 光毅, born 2001), Japanese footballer
• Aiko Saito (齋藤 愛子, born 1958), Japanese sailor
• Akane Saito (齊藤 あかね, born 1993), Japanese women's footballer
• Akihiko Saito (斎藤 昭彦, 1961–2005), Japanese security guard taken hostage in Iraq in 2005
• Akio Saito (斉藤 明雄, born 1955), Japanese baseball player
• Akira Saito (motorcyclist) (斉藤 明, born 1963), Japanese motorcycle racer
• Akitoshi Saito (斎藤 彰俊, born 1965), Japanese professional wrestler
• Asuka Saitō (齋藤 飛鳥, born 1998), Japanese idol, singer, actress and fashion model
• Asuto Saitō (斎藤 明日斗, born 1998), Japanese shogi player
• Ayaka Saitō (齋藤 彩夏, born 1988), Japanese voice actress
• Ayaka Saito (karateka) (齊藤 綾夏), Japanese karateka
• Ayako Saitoh (born 1956), Japanese wheelchair curler, 2010 Winter Paralympian
• Ayumu Saito (斎藤 歩, born 1964), Japanese playwright, director, actor and theatre producer
• Chiho Saito (さいとう ちほ, born 1967), Japanese manga artist
• Saitō Chikudō (斉藤 竹堂, 1815–1852), Japanese Confucian scholar, historian, and poet
• Chisato Saito (齊藤 千聖, born 1988), Japanese long-distance runner
• Chiwa Saitō (斎藤 千和, born 1981), Japanese voice actress
• Daigo Saito (斎藤 太吾, born 1980), Japanese drifting driver
• Daisuke Saito (footballer, born 1974) (斎藤 大輔), Japanese footballer
• Daisuke Saito (footballer, born 1980) (斉藤 大介), Japanese footballer
• Saitō Dōsan (斎藤 道三, 1494–1556), Japanese samurai and daimyō
• Eishiro Saito (斎藤 英四郎, 1911–2002), Japanese businessman
• Eva Saito-Noda (1921-2004), Canadian composer
• Fumio Saito (斎藤 文夫, born 1953), Japanese basketball player
• Fusae Saitō (齊藤 房江, born 1951), the married name of Fusae Ohta, Japanese politician and Japan's first female prefectural governor
• Giyo Saito (斎藤 魏洋, 1909–1944), Japanese swimmer
• Saitō Hajime (斎藤 一, 1844–1915), Japanese samurai and Shinsengumi third unit captain
• Harley Saito (ハーレー 斉藤, 1967–2016), Japanese professional wrestler
• Haruka Saito (斎藤 春香, born 1970), Japanese softball player
• Hideko Saito (斎藤 ひで子, born 1950), Japanese cross-country skier
• Hideo Saito, a ring name of Captain New Japan (born 1982), Japanese professional wrestler
• Hideo Saito (musician) (齋藤 秀雄, 1902–1974), Japanese musician
• Hiro Saito (斎藤 弘幸, born 1961), Japanese professional wrestler
• Hiroko Saito (斎藤 弘子, born 1945), Japanese swimmer
• Hiroshi Saito (basketball) (斎藤 博, born 1933), Japanese basketball player
• Hiroshi Saito (diplomat) (斎藤 博, 1886–1939), Japanese diplomat
• Hiroshi Saito (footballer) (斉藤 浩史, born 1970), Japanese footballer
• Hiroshi Saitō (governor) (斎藤 弘, born 1957), Japanese politician from Yamagata, Yamagata Prefecture
• Hiroshi Saito (mathematician) (斎藤 裕, 1947–2010), Japanese mathematician
• Hiroshi Saitō (mayor) (斉藤 博, born 1939), Japanese politician from Tokorozawa, Saitama Prefecture
• Hiroshi Saito (pentathlete) (才藤 浩, born 1961), Japanese modern pentathlete
• Hiroshi Saito (rower) (斎藤 宏, born 1937), Japanese rower
• Hiroya Saito (斉藤 浩哉, born 1970), Japanese ski jumper
• Hisaharu Saito (斉藤 久治, born 1962), Japanese water polo player
• Hitohiro Saito (斎藤 仁弘, born 1957), Japanese teacher of aikido and son of Morihiro Saito
• Hitomi Saito (斉藤 瞳, born 1981), Japanese singer, idol and radio personality
• Hitomi Saito (speed skater) (斎藤 仁美, born 1990), Japanese speed skater
• Hitoshi Saito (斉藤 仁, born 1961), Japanese judoka
• Ichirō Saitō (斎藤 一郎, 1909–1979), Japanese film score composer
• Ikuzo Saito (斎藤 育造, born 1960), Japanese sport wrestler
• James Saito (born 1955), American actor
• Jiro Saito (voice actor) (斉藤 次郎), Japanese voice actor
• Jiro Saito (businessman) (斎藤 次郎, born 1936), Japanese businessman
• Jitsuko Saito (斎藤 実子, born 1946), Japanese speed skater
• Jumpei Saito (斎藤 純平, born 1992), Japanese footballer
• Juniti Saito (born 1942), Brazilian military officer and the former commander of the Brazilian Air Force
• Katsuya Saito (斎藤 勝也, born 1940), Japanese cyclist
• Katsuyuki Saito (斎藤 克幸, born 1973), Japanese footballer
• Kazuki Saito (齊藤 和樹, born 1988), Japanese footballer
• Kazuko Saito (斉藤 和子), Japanese communist politician
• Kazumi Saito (斉藤 和巳, born 1977), Japanese baseball player
• Kazuo Saito (斉藤 和夫, born 1951), Japanese footballer and manager
• Kazuo Saito (athlete) (斎藤 和夫, born 1942), Japanese racewalker
• Kazuyoshi Saito (斉藤 和義, born 1966), Japanese singer-songwriter
• Kei Saito (齋藤 慧, born 1996), Japanese speed skater
• Keiko Saito (斉藤 慶子, born 1961), Japanese actress
• Keiko Saito (footballer) (斉藤 圭子), Japanese women's footballer
• Keita Saito (齋藤 恵太, born 1993), Japanese footballer
• Ken Saitō (齋藤 健, born 1959), Japanese politician
• Ken'ichi Saitō (斉藤 健一, born 1972), better known as Hiroshi, Japanese owarai comedian
• Kenkichi Saito (斎藤 兼吉), Japanese swimmer
• Kikuo Saito (1939–2016), Japanese-born American painter
• Kimiko Saitō (斉藤 貴美子, born 1977), Japanese voice actress
• Kinoto Saito (斉藤 乙, born 1976), Japanese footballer
• Kiyonori Saito (斎藤 清憲, born 1947), better known as Daisuke Ban, Japanese actor
• Kiyoshi Saitō (artist) (斎藤 清, 1907–1997), Japanese printmaker
• Kiyoshi Saito (footballer) (斉藤 紀由, born 1982), Japanese footballer
• Kiyoshi Saito (table tennis) (斎藤 清, born 1962), Japanese table tennis player
• Kohei Saito (斎藤 幸平, born 1987), Japanese philosopher and historian of economic thought
• Kōichi Saitō (cinematographer) (斉藤 幸一), Japanese cinematographer
• Kōichi Saitō (film director) (斎藤 耕一, 1929–2009), Japanese film director
• Kōichi Saitō (photographer) (齋藤 康一, born 1935), Japanese photographer
• Kōji Saitō (photographer) (斎藤 鵠児, 1893–?), Japanese photographer
• Koji Saito (athlete) (斉藤 晃司), Japanese Paralympic athlete
• Kōsei Saitō (斎藤 光正, 1932–2012), Japanese film director
• Kosuke Saito (斉藤 広祐, born 1983), Japanese DJ and composer
• Kosuke Saito (footballer) (齋藤 功佑, born 1997), Japanese footballer
• Kota Saito (斎藤 宏太, born 1997), Japanese footballer
• Koya Saito (斎藤 広野, born 1986), Japanese footballer
• Kozo Saito, Japanese electrical engineer
• Kunihiko Saitō (斎藤 邦彦), Japanese diplomat
• Kyoji Saito (齋藤 恭司, born 1944), Japanese mathematician
• Kyōko Saitō (齊藤 京子, born 1997), Japanese idol
• Kyujiro Saito (斎藤 久治郎, born 1947), Japanese weightlifter
• Saitō Makoto (斎藤 実, 1858–1936), Imperial Japanese Navy admiral, politician and Prime Minister of Japan
• Makoto Saitō (designer) (サイトウ マコト, born 1952), Japanese graphic designer
• Makoto Saitō (wrestler) (斎藤 誠, born 1974), also known as K-ness., Japanese professional wrestler
• Makoto Saito (amateur wrestler) (斎藤 真, born 1951), Japanese sport wrestler
• Manabu Saitō (齋藤 学, born 1990), Japanese footballer
• Marina Saito (斉藤 真理菜, born 1995), Japanese javelin thrower
• Masaki Saito (baseball) (斎藤 雅樹, born 1965), Japanese baseball player
• Masaki Saito (footballer) (齋藤 将基, born 1980), Japanese footballer
• Masanori Saito (斎藤 昌典, born 1942), better known as Masa Saito, Japanese professional wrestler
• Masaru Saito (齊藤 勝, born 1988), Japanese baseball player
• Masato Saito (斉藤 雅人, born 1975), Japanese footballer
• Masaya Saito (斎藤 雅也, born 1985), Japanese footballer
• Miki Saito (斉藤 美紀, born 1968), Japanese swimmer
• Minoru Saito (斉藤 実, born 1934), Japanese sailor
• Mitsuki Saito (齊藤 未月, born 1999), Japanese footballer
• Miuna Saito (斉藤 美海, born 1987), Japanese pop singer
• Mizuho Saito, the Japanese drummer of ZONE
• Mokichi Saitō (斎藤 茂吉, 1882–1953), Japanese poet
• Momoko Saitō (斎藤 桃子, born 1982), Japanese voice actress
• Momoko Saito (cricketer) (born 1981), Japanese women cricketer
• Morihiko Saito (斎藤 盛彦, born 1961), Japanese mathematician
• Morihiro Saito (斉藤 守弘, 1928–2002), Japanese aikidoka
• Saitō Myōchin (斎藤 妙椿, 1411–1480), Japanese daimyō and monk
• Nana Saitō (齋藤 奈々, born 1988), Japanese model
• Naoko Saito (齋藤 尚子, born 1976), Japanese field hockey player
• Naoto Saito (斉藤 直人, born 1997), Japanese rugby union player
• Neko Saito (斎藤 ネコ, born 1959), Japanese musician
• Nobuharu Saito (齋藤 信治, born 1973), Japanese volleyball player
• Osamu Saito (斎藤 修, born 1938), Japanese rower
• Rika Saito (斎藤 里香, born 1983), Japanese weightlifter
• Rie Saito (斉藤 里恵, born 1984), Japanese politician and writer
• Rin Saitō (斉藤 倫), Japanese manga artist
• Ryo Saito (斎藤 了, born 1979), Japanese professional wrestler
• Ryo Saito (footballer) (齋藤 遼, born 1999), Japanese footballer
• Ryoei Saito (齊藤 了英, 1916–1996), Japanese businessman and art collector
• Saitō Ryokuu (斎藤 賢, 1867–1904), Japanese writer
• Ryuji Saito (才藤 龍治, born 1993), Japanese footballer
• Ryusei Saito (齊藤 隆成, born 1994), Japanese footballer
• Ryu Saito (齋藤 竜, born 1979), Japanese footballer
• Sachiko Saito (斎藤 幸子, born 1947), Japanese speed skater
• Saizo Saito (斎藤 才三, 1908–2004), Japanese footballer
• Sakae Saitō (斉藤 栄, born 1933), Japanese writer
• Saitō Satoshi (齋藤 聰, 1922–2014), Japanese kobudoka
• Seigo Saito (齋藤 制剛, born 1977), Japanese judoka
• Seiichi Saito (斉藤 誠一, born 1976), Japanese footballer
• Seiji Saito (斉藤 誠司, born 1986), Japanese footballer
• Shigemi Saito (斎藤 繁美, born 1937), Japanese sport shooter
• Shinji Saito (斎藤 慎司, born 1989), Japanese yo-yo performer and competitor
• Shintarō Saitō (斎藤 慎太郎, born 1993), Japanese shogi player
• Shinya Saito (齊藤 慎弥, born 1980), Japanese biathlete
• Shiori Saito (齋藤 栞, born 1998), Japanese badminton player
• Shirō Saitō (斎藤 志郎, born 1956), Japanese actor and voice actor
• Shogo Saitoh (斉藤 彰吾, born 1989), Japanese baseball player
• Shota Saito (footballer, born 1994) (齋藤 翔太), Japanese footballer
• Shota Saito (footballer, born 1996) (斎藤 翔太), Japanese footballer
• Shuka Saitō (斉藤 朱夏, born 1996), Japanese voice actress
• Sōma Saitō (斉藤 壮馬, born 1991), Japanese voice actor and singer
• Syuusuke Saito (斉藤 秀翼, born 1993), Japanese actor and singer
• Tadashi Saito (斎藤 直, born 1938), Japanese rower
• Taichi Saito (齋藤 太一, born 1993), Japanese badminton player
• Takako Saito (born 1929), Japanese artist
• Takako Saito (wrestler) (斉藤 貴子, born 1983), Japanese sport wrestler
• Takao Saito (斎藤 隆夫, 1936-2021), Japanese manga artist
• Takao Saito (cinematographer) (斎藤 孝雄, 1929–2014), Japanese cinematographer
• Saitō Takao (politician) (斎藤 隆夫, 1870–1949), Japanese politician
• Takashi Saito (斎藤 隆, born 1970), Japanese baseball pitcher
• Takashi Saito (footballer) (齋藤 恭志, born 1993), Japanese footballer
• Takashi Saito (sumo wrestler) (斉藤 俊, c. 1990 – 2007), Japanese sumo wrestler who died due to injuries sustained in the Tokitsukaze stable hazing scandal
• Takashi Saito (weightlifter) (斎藤 隆, born 1953), Japanese weightlifter
• Takeshi Saito (footballer) (斉藤 武志, born 1979), Japanese footballer
• Takeshi Saito (ice hockey) (齊藤 毅, born 1981), Japanese ice hockey player
• Takeshi Saito (mathematician) (斎藤 毅), Japanese mathematician
• Takeshi Saito (musician) (斎藤 毅, born 1959), Japanese violinist
• Taki Saito (born 2000), Filipino actress
• Taku Saito (斎藤 卓, born 1979), Japanese basketball coach
• Takumi Saito (斎藤 工, born 1981), Japanese actor
• Takumi Saito (racewalker) (born 1993), Japanese racewalker
• Tamaki Saitō (斎藤 環, born 1961), Japanese psychologist
• Tatsuo Saitō (斎藤 達雄, 1902–1968), Japanese actor
• Saitō Tatsuoki (斎藤 右兵衛・大筆 龍興, 1548–1573), Japanese daimyō
• Tetsuo Saito (斉藤 鉄夫, born 1952), Japanese politician
• Tetsuya Saito (斉藤 哲也, born 1983), Japanese ice hockey player
• Tomoharu Saitou (齋藤 友晴, born 1983), Japanese Magic: the Gathering player
• Tomohiro Saitō (齋藤 智裕, born 1984), birth name of Hiro Mizushima, Japanese actor, writer and model
• Saitō Tomonobu (斎藤 朝信, 1527–1591), Japanese samurai
• Tomoyuki Saito, Japanese mixed martial artist
• Torajirō Saitō (斎藤 寅次郎, 1905–1982), Japanese film director
• Toshihide Saito (斉藤 俊秀, born 1973), Japanese footballer and manager
• Saito Toshikazu (齋藤 俊一, died 1582), Japanese samurai
• Saitō Toshimitsu (斎藤 利三, 1534–1582), Japanese samurai
• Saitō Toshinaga (斎藤 利永, died 1460), Japanese daimyō
• Toshitsugu Saito (斉藤 斗志二, born 1944), Japanese politician
• Tsukasa Saito (斎藤 司, born 1979), Japanese comedian
• Tsuneyoshi Saito (斎藤 恒芳, born 1965), Japanese composer and arranger
• William Saito (born 1971), Japanese-American businessman
• Yasuka Saitō (齋藤 ヤスカ, born 1987), Japanese actor
• Yasuo Saitō (diplomat) (齋藤 泰雄, born 1948), Japanese diplomat
• Yasuo Saitō (斎藤 恭央, 1976–2013), better known as Yakkun Sakurazuka, Japanese comedian and voice actor
• Yoot Saito (斉藤 由多加, born 1962), Japanese video game designer
• Yoshifumi Saito (斉藤 好史, born 1958), Japanese water polo player
• Yoshihiko Saito (斎藤 嘉彦, born 1972), Japanese hurdler and sprinter
• Yoshihiro Saito (斉藤 良宏, born 1976), Japanese gymnast
• Yoshishige Saitō (斎藤 義重, 1904–2001), Japanese visual artist
• Saitō Yoshitatsu (斎藤 義龍, 1527–1561), Japanese samurai and daimyō
• Yoshitsugu Saitō (斎藤 義次, 1890–1944), Japanese general
• Yoshiyuki Saito (斉藤 義之, born 1970), better known as Super Shisa, Japanese professional wrestler
• Yōsuke Saitō (斎藤 陽介, born 1988), Japanese footballer
• Yuka Saitō (essayist) (斎藤 由香, born 1962), Japanese essayist
• Yuka Saitō (voice actress) (斉藤 佑圭, born 1986), Japanese voice actress
• Yuki Saito (actress) (斉藤 由貴, born 1966), Japanese singer-songwriter, actress, essayist and poet
• Yuki Saito (pitcher, born 1987) (齊藤 悠葵), Japanese baseball pitcher for the Hiroshima Toyo Carp
• Yuki Saito (pitcher, born 1988) (斎藤 佑樹), Japanese baseball pitcher for the Hokkaido Nippon-Ham Fighters
• Yuriko Saito (斉藤 百合子), professor of philosophy at Rhode Island School of Design
• Yasuka Saitō (齋藤 ヤスカ, born 1987), Japanese actor
• Yuya Saito (斉藤 祐也, born 1977), Japanese rugby union player

• Saito (Ghost in the Shell) (サイトー), a character in the anime series Ghost in the Shell: Stand Alone Complex
• Saitō (斎藤), a character in the manga series Mitsuboshi Colors
• Colonel Saito, a character in the film The Bridge on the River Kwai
• Saito, a character in the film Inception
• Aaya Saitō (斉藤 亜綾), a character in the OVA series Kuttsukiboshi
• Aoi Saitou (斎藤 葵), a character in the novel series Sound! Euphonium
• Ena Saitō (斉藤 恵那), a character in the manga series Laid-Back Camp
• Saitō Hajime (Rurouni Kenshin) (斎藤 一), a character in the manga series Rurouni Kenshin
• Kaede Saitou (斉藤 楓), a character in the manga series Angelic Layer
• Kaede Saitō (斎藤 楓), a character in the manga series Encouragement of Climb
• Kaori Saito, a character in the manga series Ice Blade
• Nagisa Saito (斉藤 渚), a character in the manga series Squid Girl
• Saito Hikari (Hub Hikari) from the Mega Man Battle Network video game series
• Shou Saito, a character in the Black Mirror episode "Playtest"
• Yakumo Saito (斉藤 八雲), a character in the novel series Psychic Detective Yakumo
• Yui Saito (斉藤 結衣), a character in the light novel series And You Thought There Is Never a Girl Online?

• Saitō Musashibō Benkei (1155–1189), Japanese warrior monk of folklore
• Saitō clan, a Japanese clan during the Sengoku period