Jason Stoltenberg (born 4 April 1970) is an Australian former professional tennis player.

Stoltenberg began playing tennis at age ten on an antbed (crushed termite mound) court where his father owned a cotton farm in the Far West (the bush) of New South Wales.

Stoltenberg reached his first tour singles final in 1989 at Livingston, New Jersey and won his first top-level title in 1993 at Manchester.

He was also part of the Australian team which finished runners-up in that year's Davis Cup, losing in the final to Germany.

Stoltenberg's best performance at a Grand Slam event came in 1996, when he reached the semi-finals at Wimbledon, defeating Adrian Voinea, Jiří Novák, Mosé Navarra, Jakob Hlasek and Goran Ivanišević in the quarter-finals, before being knocked-out by eventual champion Richard Krajicek.