Luboš Perek (26 July 1919 – 17 September 2020) was a Czech astronomer best known for his Catalogue of Galactic Planetary Nebulae co-written in 1967 with Luboš Kohoutek. He worked on the distribution of mass in the galaxy, high-velocity stars, planetary nebulae, definition of outer space, geostationary orbit, space debris, and management of outer space.