Harry Allan (disambiguation) explained

Harry Allan (1882–1957) was a New Zealand teacher, botanist, scientific administrator and writer.

Harry Allan may also refer to:

• Harry Allan (rugby union) (born 1997), New Zealand rugby union player
• Harry Allan (footballer) (fl. 1898–1900), Scottish footballer

See also

• Harry Allen (disambiguation)
• Henry Allan (disambiguation)
• Henry Allen (disambiguation)
• Harold Allen (disambiguation)