Ain (given name)

Ain is a common Estonian-language male given name.

People named Ain include:
 * Ain Andressoo (1935–2023), Estonian archer and architect
 * Ain Anger (born 1971), Estonian opera bass
 * Ain Evard (born 1962), Soviet/Estonian high jumper
 * Ain-Alar Juhanson (born 1976), Estonian triathlete
 * Ain Kaalep (1926–2020), Estonian poet, playwright, literary critic and translator
 * Ain Kalmus (1906–2001), Estonian writer and theologian
 * Ain Lutsepp (born 1954), Estonian actor and politician
 * Ain Mäeots (born 1971), Estonian actor and director
 * Ain Mäesalu (born 1955), Estonian archeologist
 * Ain Matvere (1967–2018), Estonian badminton player
 * Ain-Ervin Mere (1903–1969), Estonian military officer
 * Ain Padrik (born 1947), Estonian architect
 * Ain Prosa (born 1967), Estonian director and actor
 * Ain Roost (born 1946), Canadian discus thrower of Estonian origin
 * Ain Saar (born 1968), Estonian freedom fighter
 * Ain Saarmann (born 1939), Estonian politician
 * Ain Seppik (born 1952), Estonian politician
 * Ain Sillak (Alfred Schmidt, 1898–1972), Estonian weightlifter
 * Ain Tammus (born 1969), Estonian footballer and coach
 * Ain Vilde (born 1942). Estonian ice yachter and sport sailor