Olen may refer to:
Places Olen, Belgium, a municipality in the province of Antwerp, Belgium Olen, Russia, a village in Tula Oblast, Russia Ølen Municipality, a former municipality in Rogaland county, Norway Ølensjøen, or Ølen, a village in Vindafjord Municipality in Rogaland county, Norway Ølen Church, a church in Vindafjord Municipality in Rogaland county, Norway Olën Park, a stadium in Potchefstroom, South Africa
People Olen (poet) (c. 1000 BCE), a Greek poet of legend from Lycia
Helaine Olen (born mid-1960s), American journalist and author Eric Olen (born 1980), American basketball coach Lairenjam Olen (born 1973), Indian actor Otto L. Olen (1867–1946), American politician from Wisconsin
Fred Olen Ray (born 1954), American filmmaker Frederick Olen Mercer (1901–1966), US federal judge Robert Olen Butler (born 1945), American fiction writer Robert Olen Butler Prize, writing prize with winners selected by Butler
Olen Lovell Burrage (1930–2013), American businessman suspected of three murders Olen Steinhauer (born 1970), American fiction writer Olen Underwood (born 1942), American football player Olen Zellweger (born 2003), Canadian ice hockey player
See also Olene, a genus of moths