| Thailand | |
|---|---|
 | |
| Captain | Thanakorn Srichaphan |
| ITF ranking | 49  (20 September 2021) |
| Colors | red and white |
| First year | 1958 |
| Years played | 42 |
| Ties played (W–L) | 92 (49-43) |
| Best finish | WG Play-offs (2002, 2003, 2004, 2006) |
| Most total wins | Danai Udomchoke (42-20) |
| Most singles wins | Danai Udomchoke (40-17) |
| Most doubles wins | Vittaya Samrej (21-13) |
| Best doubles team | Vittaya Samrej/Narathorn Srichaphan (11-5) Sanchai Ratiwatana/Sonchat Ratiwatana (11–9) |
| Most ties played | Vittaya Samrej (37) |
| Most years played | Vittaya Samrej (18) |
The Thailand men's national tennis team represents Thailand in Davis Cup tennis competition and are governed by the Lawn Tennis Association of Thailand.
Thailand currently compete in the Asia/Oceania Zone of Group II. They have never competed in the World Group, but reached the Play-offs on four occasions.