Oliver Gross (born 17 June 1973) is a former professional tennis player from Germany.
Gross, the 1991 German Youth Champion, turned professional in 1993. The following year reached his first and only ATP Tour final, in San Marino, where he was defeated in straight sets by Carlos Costa.
He reached his highest career ranking of 60 in 1995, after reaching the quarterfinals in Munich and defeating number two Peter Sampras in Barcelona 1âÂÂ6, 6âÂÂ2, 6âÂÂ3.
His best performance in a Grand Slam came at the 1998 US Open when he reached the round of 16. Gross came from two sets down in the opening round to beat 16th seed Albert Costa 2âÂÂ6, 4âÂÂ6, 7âÂÂ5, 6âÂÂ2, 6âÂÂ4. He then accounted for dual French Open winner Sergi Bruguera 6âÂÂ1, 6âÂÂ3, 6âÂÂ4 and in the third round had another five setter, defeating American wildcard Geoff Grant, 7âÂÂ5, 6âÂÂ7, 5âÂÂ7, 6âÂÂ3, 7âÂÂ5. Playing for a spot in the quarter-final, Gross was defeated by Swede Magnus Larsson 4âÂÂ6, 5âÂÂ7, 7âÂÂ5, 2âÂÂ6.