HP5 or variant, may refer to:
HP5, a postcode for Chesham, see HP postcode area hP5, a Pearson symbol Harry Potter and the Order of the Phoenix, the fifth Harry Potter novel Harry Potter and the Order of the Phoenix (film), the fifth Harry Potter film Handley Page Type E a.k.a. H.P.5, an airplane HP-5, a glider designed by Richard Schreder HP5 and HP5+, a type of photographic stock, see Ilford HP
See also HP (disambiguation)