Avihai (, lit. My father lives), sometimes spelled Avichai, is a Hebrew name, commonly found in Israel. It may refer to:
People Avichai Mandelblit (born 1963), Israeli jurist Avichai Rontzki (1951–2018), Israeli rabbi Avihai Yadin (born 1986), Israeli footballer
Fictional characters Avihai, a character in the TV show Fauda