| Tetsuya Chaen | |
| Birth Date: | 5 November 1973 |
| Birth Place: | Osaka Prefecture, Japan |
| Height: | 175 cm |
| Plays: | Right-handed (one-handed backhand) |
| Careerprizemoney: | $59,037 |
| Singlesrecord: | 0–3 |
| Highestsinglesranking: | No. 339 (20 Apr 1998) |
| Australianopenresult: | Q1 (1994, 1997, 1998) |
| Doublesrecord: | 1–2 |
| Highestdoublesranking: | No. 371 (5 Jul 1999) |
Tetsuya Chaen (born 5 November 1973) is a Japanese former professional tennis player.[1]
Born in Osaka, Chaen turned professional in 1993 and reached a best singles world ranking of 339 during his career, which included qualifying draw appearances at the Australian Open. He featured in the singles main draw of three ATP Tour tournaments, spanning 1994 to 2006. As a doubles player he had a highest ranking of 371 in the world.[2]