| Kaarel Lukk | |
| Nationality: | Estonian |
| Sport: | Athletics |
| Event: | Racewalking |
| Birth Date: | 6 December 1887 |
| Birth Place: | Tähtvere Parish (now part of Tartu), Kreis Dorpat, Governorate of Livonia, Russian Empire |
| Death Place: | Tartu, Estonia |
Kaarel Lukk (also Karl Michael Lukk; 6 December 1887 – 17 November 1970) was an Estonian racewalker and politician.[1] He competed in the men's 10 kilometres walk at the 1912 Summer Olympics for the Russian Empire.[2]
He was a member of Estonian Constituent Assembly.[3]