Fenn typically appears as a surname. Occasionally it appears as a middle name, pen name or name of a fictional character.
In the case of the character Fenn Shysa (Star Wars universe), 'Fenn' is used as a given name.
Fenn is a female character in Wilbur Smith's novel The Quest. In the book he indicates that the name Fenn means Moon Fish.
Fenn has been used as a middle name in cases not directly attributable to retention of a maiden name, such as in the case of the English-Australian soldier Anthony Fenn Kemp (1773–1868).
Fenn has occasionally been used as a pen name, such as in the case of American writer Charles L. Grant (1942–2006) who wrote under the name "Lionel Fenn" among others.