Puerto Pollensa ia family orientated resort so the nightlife mainly revolves around restaurants and bars. There is however one nightclub (Chivas) for anyone who wants to dance late into the night. Chivas is found off the main market square on the road to the right if you are facing away from the marina.
Alcudia Port has more nightclubs if you fancy an evening away one night on your holiday. The easist way to get to Alcudia is to take a taxi.