| Ntl Team: | NLD |
| Played For: | Des Moines Capitols Omaha Knights Johnstown Jets Kalamazoo Wings Heerenveen Flyers |
| Position: | Goaltender |
| Catches: | Left |
| Birth Date: | 17 May 1952 |
| Birth Place: | Oakville, Ontario, Canada |
| Height Ft: | 5 |
| Height In: | 10 |
| Weight Lb: | 174 |
| Draft: | Undrafted |
| Career Start: | 1972 |
| Career End: | 1982 |
Theodore Gerardus Maria Lenssen (born May 17, 1952) is a former Dutch-Canadian ice hockey goaltender.
Lenssen played for the Netherlands men's national ice hockey team at the 1980 Winter Olympics in Lake Placid,[1] and the following year he competed for the Netherlands at the 1981 World Ice Hockey Championships.