Zeitlin (Yiddish: צייטלין) is a matronymic Jewish surname. It is derived from the female name Zeitl according to the rules of Slavic languages, with the possessive suffix '-in' and literally means "Zeitl's".

When transliterated from Yiddish to Russian to English, the surname may be spelled as follows. Male forms: Tseytlin, Tseitlin, Tsetlin, Tzeitlin. Female forms (usually only for Slavic nationals): Tseytlina, Tseitlina, Tsetlina, Tzeitlina.

When transliterated via Polish, the surname may be spelled as Cejtlin, Cajtlin, Zejtlin, Zajtlin.

The surname may refer to:

• Aaron Zeitlin (1889/1896/1898–1973), Russian-US Yiddish writer, composer, and poet
• Alexandre Zeitlin (1872–1946), sculptor
• Benh Zeitlin (born 1982), US filmmaker
• Denny Zeitlin (born 1938), US jazz pianist
• Froma Zeitlin (born 1933), US classics scholar
• Harriet Zeitlin (born 1929), American artist
• Hillel Zeitlin (1871–1942), Polish Yiddish writer
• Jacob Zeitlin (1902–1987), American bookseller and poet
• Joshua Zeitlin (1742–1822), Shklov-born Russian-Jewish rabbinical scholar and philanthropist
• Joshua ben Aaron Zeitlin (1823–1888), Kiev-born Russian-Jewish scholar and philanthropist
• Judith T. Zeitlin, American-Jewish scholar of Chinese literature, chair of the Department of East Asian Languages & Civilizations at the University of Chicago
• Lev Tseitlin (1881-1952), a violinist and teacher
• Leo Zeitlin (1884–1930), a violinist, violist, conductor and impresario
• Mark Tseitlin (1943–2022), a Russian-Israeli chess grandmaster
• Michael Lvovitch Tsetlin (1924–1966), Russian mathematician and physicist
• Mikhail Tseitlin (born 1947), Belarusian chess grandmaster
• Mirah Yom Tov Zeitlyn (born 1974), American musician
• Michail Yulyevich Tseytlin (Михаил Ю́льевич Цейтлин), also as M. Yu. Ceitlin and M. Ju. Zeitlin, a Russian mathematician, who worked on the book Gradshteyn and Ryzhik in the 1960s and early 1970s
• Solomon Zeitlin (1892–1976), American Jewish historian
• William Zeitlin (1850–1921), Russian-Jewish scholar and bibliographer
• Zvi Zeitlin (1922–2012), Russian-US violinist
• Vladislav Tseytlin (born 1971), Uzbekistani football FIFA referee

This page lists people with the surname Zeitlin, Zaitlin, Tseytlin, Cejtlin, Tseitlin, Cajtlin, Tsetlin, etc..
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.