Ib is a Danish masculine given name which may refer to:
- Ib Andersen (born 1954), Danish ballet dancer and choreographer
- Ib Braase (1923âÂÂ2009), Danish sculptor
- Ib Eisner (1925âÂÂ2003), Danish artist
- Ib Frederiksen (), Danish former badminton player
- Ib Friis (born 1945), Danish professor of botany
- Ib Geertsen (1919âÂÂ2009), Danish painter and sculptor
- Ib Glindemann (1934âÂÂ2019), Danish jazz musician and big band leader
- Ib Vagn Hansen (1926âÂÂ2000), Danish cyclist
- Ib Jacquet (born 1956), Danish former footballer
- Ib Larsen (born 1945), Danish rower, 1968 Summer Olympics bronze medalist in the coxless pairs
- Ib Madsen (born 1942), Danish mathematician and professor
- Ib Melchior (1917âÂÂ2015), Danish-American novelist, short story writer, film producer, director and screenwriter
- Ib Mossin (1933âÂÂ2004), Danish actor, singer and director
- Ib Nielsen (1919âÂÂ1994), Danish fencer
- Ib Nørholm (1931âÂÂ2019), Danish composer and organist
- Ib Olsen (1929âÂÂ2009), Danish rower, 1948 Summer Olympics bronze medalist in the coxed fours
- Ib Spang Olsen (1921âÂÂ2012), Danish writer and illustrator
- Ib Schønberg (1902âÂÂ1955), Danish film actor
- Ib Thomsen (born 1961), Norwegian politician