Leela is a computer Go software developed by Belgian programmer Gian-Carlo Pascutto,[1][2][3] the author of chess engine Sjeng.

[5] According to its website, it has "Strength over 9 dan on 19 x 19, depending on hardware".

The program was named "Leela" because the author wanted a pleasant female name that contrasted with the prevailing style at the time, typified by names like "Shredder", "Tiger", and "Rebel".

A version featuring deep learning technology was released for free in February 2017.

It was the first Go engine close to professional level freely available on a personal computer.