| Thomas Christiansen | |
| Nationality: | Danish |
| Sport: | Diving |
| Birth Date: | 5 January 1920 |
| Birth Place: | Copenhagen, Denmark |
| Death Place: | Mountlake Terrace, Washington, U.S. |
Thomas Christiansen (5 January 1920 - 12 March 1998) was a Danish diver. He competed at the 1948 Summer Olympics and the 1952 Summer Olympics.[1]