Łucki is a Polish-language toponymic surname literally meaning "from/of Łuck". Notable people with this surname include:
- Simḥah Isaac Luzki (1716-1766), qaraim maskil, theologian, kabbalist writer, scholar, bibliographer and spiritual leader
- Brenda Lucki, first female police commissioner for the Royal Canadian Mounted Police
- George Lucki (born 1957), Polish-Canadian consulting psychologist
- Jerzy Michał Łucki (1898 – 1939), Polish bobsledder, military officer and athlete