To see bats in your dream represents filth, dishonesty, and inner turmoil. It may also mean that you should turn your back on previous beliefs and attitudes, as they are no longer relevant to the direction your life is heading. It may imply a new beginning. It may also indicate that you need to thoroughly assess an issue before you decide to tackle it. The dream may also be a play on the word 'batty,' which means that you are feeling unstable and unable to control emotions or influences in your life.
To dream of a white bat indicates the pending doom of a loved one. To dream of a black bat represents a tragic occurrence that will affect you directly.
To see a vampire bat in your dream is a symbol of someone you associate with who is influencing you negatively.