Raúl Antonio Viver (born 17 March 1961) is a former professional tennis player from Ecuador.

[1] Viver was the world number one ranked junior player in 1979, the year that he won the Orange Bowl (18s & Under).

[2] In the 1982 French Open, Viver and partner Luca Bottazzi had a win over fifth seeds Anders Järryd and Hans Simonsson, but lost in the second round.

[2] Three years later he won his only Grand Slam singles match, over world number 42 John Fitzgerald.

In the mid-1980s he was part of the team which competed in the World Group and faced players like Jimmy Arias, Boris Becker and Miloslav Mečíř.