The planet Kepler is not named after a person. It's named after the Kepler mission, which was a NASA space telescope launched in 2009 to discover planets orbiting other stars.

The Kepler mission was named after the German astronomer Johannes Kepler, who formulated the laws of planetary motion, which are fundamental to our understanding of planetary orbits.

Therefore, while the mission is named after Kepler, no individual "discovered" the planet itself. Instead, the Kepler mission identified countless planets using the transit method, where it detected the slight dimming of a star's light as a planet passes in front of it.