Glen Allen, Glen Allan, or similar, may refer to:
Places Glen Allyn, Queensland, Australia Glen Allan, Ontario, Canada; see Conestogo Lake Glen Allen, Alabama, U.S. Glen Allan, Mississippi, U.S. Glen Allen, Missouri, U.S. Glen Allen, Virginia, U.S. Glen Allen High School Glennallen, Alaska, U.S.
People Glenn Allen Jr. (born 1970), U.S. autoracer Glenn Seven Allen, American actor and operatic tenor Glen Alyn (1913–1984), Australian actress Glenallen Hill (born 1965), U.S. professional baseball player
See also Glen Ellen, California, U.S. Glen Ellyn, Illinois, U.S.