Fenn typically appears as a surname. Occasionally it appears as a middle name, pen name or name of a fictional character.
born in China
Henry Courtenay Fenn (1894–1978), Chinese-American academic
born in the United Kingdom
Ellenor Fenn née Frere (1743–1813), English writer
George Manville Fenn (1831–1909), English author
Harry Fenn (1845–1911), English-American landscape illustrator
Hugh Fenn (disambiguation), multiple people
Jaine Fenn (living), British science fiction author
Jane Fenn Hoskens née Fenn (1694–1794), English-American Quaker author
Joanne Fenn (born 1974), English running athlete
Sir John Fenn (antiquarian) (1739–1794), English antiquarian
Neale Fenn (born 1977), English-Irish footballer
Sir Nicholas Fenn (1936–2016), British diplomat
Ollie Fenn (born 1988), English footballer
Rick Fenn (born 1953), English rock guitarist
Blessed James Fenn, English Martyr
born in the United States
Reverend Dr Courtenay Hughes Fenn (1866–1927), American-Chinese Presbyterian missionary
E. Hart Fenn (1856–1939), American national politician
John Fenn (pirate) (died 1723), English pirate
Dr John Bennett Fenn (born 1917), Nobel laureate in Chemistry
Sereno Peck Fenn (1844–1927), American entrepreneur
Sherilyn Fenn (born 1965), American actress
Stephen Southmyd Fenn (1820–1892), American national politician
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.
Fenn College, predecessor of Cleveland State University
Fenn Tower, building on the campus of Cleveland State University
Fenn's Moss, part of a British nature reserve