Royce Deppe (born 11 August 1965, in Durban, South Africa) is a former professional tennis player from South Africa. He enjoyed most of his tennis success while playing doubles. During his career he won 1 doubles title. He achieved a career-high doubles ranking of world No. 75 in 1992.
| Loss | 1. | Jun 1992 | ATP Florence, Italy | Clay | Brent Haygarth | Marcelo Filippini Luiz Mattar | 4–6, 7–6, 4–6 |
| Win | 1. | Jul 1992 | Newport, U.S. | Grass | David Rikl | Paul Annacone David Wheaton | 6–4, 6–4 |
| Loss | 2. | Oct 1993 | ATP Athens, Greece | Clay | John Sullivan | Horacio de la Peña Jorge Lozano | 6–3, 1–6, 2–6 |
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