Mrs. Columbo (later called Kate Columbo, Kate the Detective, and Kate Loves a Mystery) is an American crime drama television series, initially based on the wife of Lieutenant Columbo, the title character from the television series Columbo. It was created and produced by Richard Alan Simmons and Universal Television for NBC, and stars Kate Mulgrew as a news reporter helping to solve crimes while raising her daughter.

The series debuted in February 1979 as a spin-off to the mystery crime drama series Columbo, focusing on Lieutenant Columbo's wife, who is never given a first name in the original Columbo series but was named Kate in this series. After poor ratings and reception from both audiences and the original producers of Columbo, both the series and the eponymous character herself were renamed in an attempt to change direction, but this did not help ratings and the series ended with a run of just 13 episodes. Neither Peter Falk nor the character of Lieutenant Columbo ever appeared on the show.