Head On is the second studio album by British heavy metal band Samson, released in 1980.

A jazz-style spoof version of "Vice Versa", titled "Egg Timer" and credited to Cosmo Toons and the Split Knee Loons, appears on the For Gillan Fans Only album, given away for free with the first 15,000 copies of Gillan's Glory Road, released in 1980.

All tracks by Bruce Dickinson, Paul Samson, Chris Aylmer and Thunderstick except "Thunderburst" by Dickinson, Samson, Aylmer, Thunderstick and Steve Harris Head On has seen numerous CD re-issues over the years.

The first came in 1989 courtesy of German company Repertoire and in 1990 via Grand Slamm in the U.S. and Jimco in Japan, followed by Bruce Dickinson's short-lived Air Raid label in 2000.

The re-issues on Castle/Sanctuary (2001) and Lemon (2013) both contain a pair of bonus tracks, "Angel with a Machine Gun" and "Kingsway Jam", not included on the earlier editions.