Fredrik Jonsson (born 28 March 1977) is a retired tennis player from Sweden, who turned professional in 1996. ATP World Tour: Fredrik Jonsson The right-hander reached his career-high singles ranking of World No. 108 in July 2000. Jonsson comes from the same hometown as teenage colleague-star Andreas Vinciguerra.
In Grand Slam tennis, his best performance was at the 1999 US Open, when he reached the third round and beat world number 16, Nicolás Lapentti in the second round, before losing to Slava Doseděl.
| ATP Challenger (1–3) |
| ITF Futures (2–1) |
| Loss | 0–1 | Greece F3, Chalkida | Futures | Hard | Jan-Ralph Brandt | 2–6, 1–6 | |
| Loss | 0–2 | Budva, Yugoslavia | Challenger | Clay | Tomas Behrend | 6–3, 3–6, 2–6 | |
| Win | 1–2 | Sweden F3, Gothenburg | Futures | Hard | Nicklas Timfjord | 6–3, 6–4 | |
| Win | 2–2 | Samarkand, Uzbekistan | Challenger | Clay | Oleg Ogorodov | 7–6, 6–3 | |
| Loss | 2–3 | Poznań, Poland | Challenger | Clay | Galo Blanco | 4–6, 2–6 | |
| Win | 3–3 | USA F8, Little Rock, Arkansas | Futures | Hard | Martin Verkerk | 6–3, 6–4 | |
| Loss | 3–4 | Fergana, Uzbekistan | Challenger | Hard | Ivo Heuberger | 6–4, 5–7, 2–6 |
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