| Thomas Shimada | |
| Birth Date: | 10 February 1975 |
| Birth Place: | Philadelphia, United States |
| Height: | 5 ft 10 in |
| Plays: | Right-handed |
| Careerprizemoney: | $433,946 |
| Singlesrecord: | 0–5 |
| Highestsinglesranking: | No. 477 (November 3, 1997) |
| Doublesrecord: | 88–126 |
| Doublestitles: | 3 |
| Highestdoublesranking: | No. 40 (September 24, 2001) |
| Australianopendoublesresult: | 2R (2000, 2001) |
| Frenchopendoublesresult: | 2R (2000) |
| Wimbledondoublesresult: | 2R (2000, 2001) |
| Usopendoublesresult: | 2R (2001) |
| Australianopenmixedresult: | 2R (2003) |
| Wimbledonmixedresult: | 3R (2002) |
| Usopenmixedresult: | 1R (2002) |
Thomas Shimada (born February 10, 1975) is a retired professional tennis player who represented Japan. He turned professional in 1993.
Shimada primarily played doubles. Shimada has achieved a career-high singles ranking relevant as of March 23, 2007, of world No. 477 which he reached on November 3, 1997. Also relevant of March 23, 2007, Shimada reached his career-high doubles ranking on September 24, 2001, when he became world No. 40.
| Result | W–L | Date | Tournament | Surface | Partner | Opponents | Score | |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Nov 2000 | St. Petersburg, Russia | Hard (i) | Myles Wakefield |  Daniel Nestor Kevin Ullyett | 6–7(5–7), 5–7 | |
| Loss | 0–2 | Mar 2001 | Delray Beach, US | Hard | Myles Wakefield |  Jan-Michael Gambill Andy Roddick | 3–6, 4–6 | |
| Win | 1–2 | Sep 2001 | Shanghai, China | Hard | Byron Black | John-Laffnie de Jager Robbie Koenig | 6–2, 3–6, 7–5 | |
| Win | 2–2 | Jul 2002 | Kitzbühel, Austria | Clay | Robbie Koenig |  Lucas Arnold Ker Àlex Corretja | 7–6(7–3), 6–4 | |
| Loss | 2–3 | Jul 2003 | Umag, Croatia | Clay |  Todd Perry | Álex López Morón Rafael Nadal | 1–6, 3–6 | |
| Win | 3–3 | Sep 2003 | Costa do Sauipe, Brazil | Hard | Todd Perry | Scott Humphries Mark Merklein | 6–2, 6–4 |