Ogre and troll can be differentiated by comparing some of the characteristics of the two fairy tale creatures. Ogres are mostly described as monsters having the characteristics and appearance of human beings. They are often described as monstrous, large, cruel, and frightful.
They are fairy tale creatures that eat human flesh. At times, people use it as a metaphor to describe people that are cruel, wicked, and those with certain bad habits. On the other hand, trolls are supernatural beings of different sizes living in hills, caves, under bridges, especially the grotesque creatures with certain human characteristics.
They have certain characteristics similar to that of ogres, as they are often described as cunning, wicked, dangerous, and can as well feed on human beings. Trolls usually stay in dark places because it is believed that they can be destroyed by the sunlight. Another difference is that they are often considered to be more sensible than ogres.