To see a troll in your dream indicates that you have a lower self-perception about yourself. Are you feeling worthless sometimes? It may also point out that you are depreciating yourself or others. Alternatively, dreaming about the troll may represent someone in your waking life who you need to evade. Maybe you are surrounded by devious friends. For more information, please, read the meanings of dwarf.
Read more about dreaming of Troll in other dream meanings interpretations.