Hovhannisyan or Hovannisyan (Armenian: Հովհաննիսյան [hɔvhɑnnisˈjɑn]) is an Armenian surname meaning "son of Hovhannes", the Armenian equivalent of John, thus making it equivalent to Johnson. It is the most common surname in Armenia.

Variants of the name in Armenian and Western Armenian include Hovhannesian, Hovannesian, Hovannisian, Hovhannisian and Oganessian.

Notable people with the surname include:

• Armen Hovhannisyan (1994–2014), Nagorno-Karabakh Republic Defense Army soldier
• Art Hovhannisyan, Armenian-American boxer
• Artak Hovhannisyan, Armenian sport wrestler
• Artsrun Hovhannisyan, press secretary of the Armenian Ministry of Defense.
• Ashot Hovhannisyan, Armenian politician
• Azat Hovhannisyan, Armenian boxer
• Edgar Hovhannisyan, Armenian composer
• Khoren Hovhannisyan, Armenian football midfielder
• Lilit Hovhannisyan, Armenian singer
• Lusine Hovhannisyan, Armenian footballer
• Robert Hovhannisyan, Armenian chess Grandmaster
• Sargis Hovhannisyan, Armenian football defender
• Vahan Hovhannisyan (1956–2014), Armenian politician and minister
• Vardan Hovhannisyan, Armenian director and producer
• Zhirayr Hovhannisyan, Armenian sport wrestler
• Zhora Hovhannisyan, Armenian footballer

• Diana Der Hovanessian (????–2018), Armenian American poet, translator and author
• Vartan Hovanessian (1896–1982), Iranian Armenian architect

• Ashot Hovhannisian (1887–1972), Armenian Marxist historian, theorist and Communist official
• Garin Hovannisian (born 1986), Armenian American writer, filmmaker, and producer
• Larisa Hovannisian (born 1988), Armenian-American social entrepreneur and founder of Teach For Armenia
• Raffi Hovannisian, American-born Armenian politician, Foreign Minister of Armenia
• Richard Hovannisian (1932–2023), Armenian American historian and professor emeritus

• Armen Oganesyan (born 1954), CEO of Russian state radio station Voice of Russia
• Gaguik Oganessian (1947–2015), Armenian chess player, writer and organiser
• Khoren Oganesian (born 1955), Soviet footballer
• Yuri Oganessian (born 1933), Russian-Armenian nuclear physicist

• Grigor Ter-Hovhannisian (1854–1908), real name of Armenian writer known by the pseudonym Muratsan
• Michael Hovhannisyan (1867–1933), Armenian writer known by the pseudonym Nar-Dos
• Nikoghayos Ter-Hovhannisyan (1867–1914), Armenian fedayee from Karabakh known by his pseudonym Nikol Duman
• Sargis Hovhannisian (1879–1919), Armenian revolutionary, statesman, and a leading member of the Armenian Revolutionary Federation (Dashnaktsutyun) party. He is widely regarded as the founder of the First Republic of Armenia
• Zabel Hovhannessian, birth name of Ottoman Armenian writer Zabel Yesayan

This page lists people with the surname Hovhannisyan.
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