Roar is a Norwegian masculine given name derived by the Old Norse name Hróðgeirr, and equivalent of the Norman-French name Roger. Notable people with the name include:
Roar Adler (1915–2007), Norwegian newspaper manager Roar Berthelsen (1934–1990), Norwegian long jumper Roar Christensen (born 1971), Norwegian football midfielder Roar Flåthen (born 1950), Norwegian trade unionist and politician Roar Grønvold (born 1946), Norwegian speed skater and Olympic medalist Roar Hagen (born 1954), Norwegian illustrator Roar Hagen (footballer) (born 1971), Norwegian football goalkeeper Roar Hauglid (1910–2001), Norwegian art historian and publicist Roar Hoff (born 1965), Norwegian shot putter Roar Johansen (footballer) (born 1935), Norwegian footballer Roar Johansen (football coach) (born 1968), Norwegian football coach Roar Kjernstad (born 1975), Norwegian figurative painter Roar Ljøkelsøy (born 1976), Norwegian ski jumper Roar Øfstedal, Norwegian ice hockey player Roar Pedersen (1927–1989), Norwegian ice hockey player Roar Stokke (born 1959), Norwegian football player, coach and sports commentator Roar Strand (born 1970), Norwegian football player Roar Uthaug (born 1973), Norwegian film director