Typically, no, Leo and Capricorn aren’t compatible. The reason why is that he will heavily test your patience. Leo men are high maintenance in the way that they adore female attention and it’s something they inherently NEED. Capricorn’s usually don’t have the patience for that, let alone a Capricorn female. I always tell everyone, that a relationship isn’t impossible, this certainly isn’t one of the worst pairings. It all depends on both of your personal charts to give you a thorough answer. But, I have known Capricorn and Leo relationships to become long-term.
Just remember there are certain personality traits you may be turned off from, and that his truly him. He will test your patience, but in the long term, he makes a very loyal relationship.