Alexis Kerry Ohanian (born April 24, 1983) is an American internet entrepreneur and investor. He is best known as the co-founder and former executive chairman of the social media site Reddit along with Steve Huffman and Aaron Swartz. He also co-founded the early-stage venture capital firm Initialized Capital, helped launch the travel search website Hipmunk and started the social enterprise Breadpig. He was also a partner at the startup accelerator and venture capital firm Y Combinator.

Ohanian is based in Florida where he lives with his wife, former tennis player Serena Williams and their daughters, Alexis Olympia Ohanian and Adira River Ohanian.

As of 2024, Ohanian's net worth is estimated at $150 million.

Ohanian's paternal grandparents fled from Bitlis and Kharput during the Armenian genocide and eventually moved to the United States as refugees, settling in Binghamton, New York.

Ohanian's father Chris, a travel agent, was born in San Francisco while his mother Anke, a pharmacy technician, was originally from Hamburg, Germany. Through his mother, Ohanian spoke German as a second language in his childhood, and while he identifies strongly with his Armenian heritage, Ohanian stated that he has little proficiency in Armenian.He is his parents' only child.

Ohanian was born in Brooklyn, New York City and the family moved to a Maryland suburb during his youth. Finding themselves the only Armenians in the neighborhood,^[8] his parents sent Alexis to an AGBU-sponsored summer camp to maintain ties to their culture. Ohanian attended Howard High School in Columbia, Maryland and delivered a commencement address in 2001 at Merriweather Post Pavilion.

With thoughts of becoming a computer programmer, Ohanian took the only computer science class offered in his high school. However, he lost confidence in the major once he arrived at the University of Virginia. He would go on to double major in history and business commerce and minor in German and has said, in retrospect, that he should have stayed with computer science given his work in technology.