Probably, given the vastness of space and the potential for planets with water somewhere in our galaxy. There‘s no evidence yet but we’re only now discovering planets outside our solar system that may be suitable to support life, although again there is no evidence of any yet.
The search for life is effectively the search for water, as it appears no life can exist without it. The question of intelligent life is even greater, as a planet would need optimum conditions for life to develop, evolve and advance which takes millions of years. So it needs a stable environment; not too many asteroid strikes, nor too close to its star, nor a giant planet whose gravitational pull would wreak havoc with the geology of a planet’s surface.
Given the vast distances involved, even if there was intelligent life on a distant planet elsewhere in the galaxy, it is virtually impossible for it to communicate over such a distance, and even less likelihood of any physical travel. No object with any mass can travel at the speed of light, and even at close to that speed it would take nearly five years from even our closest star (which in any case has no potentially life supporting planets).
In short, probably yes there are, most will be simple organisms, and the very few intelligent ones, if there even are any, will almost certainly never have any interaction with us.
