HP1

HP1 or variant, may refer to:

Heterochromatin Protein 1, an important marker molecule in epigenetic research
The postal code for part of Hemel Hempstead in Dacorum, see HP postcode area
hP1, a Pearson symbol
Harry Potter and the Philosopher's Stone, the first novel in J.K. Rowling's Harry Potter series
Harry Potter and the Philosopher's Stone (film), the first film in J.K. Rowling's Harry Potter series
Handley Page Type A aka H.P.1, an airplane
HP-1, a glider designed by Richard Schreder
HP1, a type of photographic stock, see Ilford HP
Haemophilus phage HP1, a virus
Hp.1 (proceed), from German railway signalling

See also