There are in fact certain species of owl that live in the rainforest, including eagle owls and wood owls. In total there are over 160 different species of owls on this planet, some of which reside in the rainforests. Owls can live in just about any environment and they are found all over the world.
Each of these owls has slightly different diets, migration habits, hunting abilities, etc. In fact there are very few places on the planet where owls cannot or do not live, save for Antarctica as well as certain islands around the world.