Eduardo Osta Valenti (born 4 September 1959) is a former professional tennis player from Catalonia, Spain.

[1] Osta took part in the men's singles draw at the 1982 French Open.

[2] He was defeated in the first round by fourth seed José Luis Clerc.

[2] The Spaniard also appeared in the 1988 French Open, as a qualifier, but again lost in the opening round, to Francisco Yunis in four sets.

[2] During the early 1990s he coached both Arantxa Sánchez Vicario and Conchita Martínez.