Henrik Djernis (born April 22, 1968 on the island of Sjælland [English: Zealand] in the village Svebølle near Kalundborg) is a Danish cyclist.
He is very accomplished in both cyclo-cross and mountain bike racing and has experience in road racing too. Throughout his 20 plus years of racing, he has won numerous races and world and national championships titles.
He was the first man to win the World Mountain Bike Championship three times, which he did in 1992 (in Bromont, QC, Canada), 1993 (in Métabief, France), and 1994 (in Vail, CO, United States). Djernis won the Danish Cyclocross National Championship ten times in a row from 1989 to 1998 and then won the title twice more in 2000 and 2001.