Friis is a name of Danish origin, meaning Frisian person. It may refer to any of the following people:
- Astrid Friis (1893âÂÂ1966), Danish historian
- Christen Friis (1581âÂÂ1639), Danish politician
- Eigil Friis-Christensen, Danish geophysicist
- Elizabeth Friis, American bioengineer
- Harald T. Friis (1893âÂÂ1976), American radio engineer
- Friis formulas for noise
- Friis transmission equation
- Henrik Friis Robberstad (1901âÂÂ1978), Norwegian politician
- Ib Friis (born 1946), Danish botanist whose standard author abbreviation is Friis
- Jacob Friis (born 1976), Danish football player and manager
- Jakob Friis (1883âÂÂ1956), Norwegian politician
- Jakob Friis-Hansen (born 1967), Danish football player
- Janus Friis (born 1976), Danish entrepreneur
- Johan Friis (1494âÂÂ1570), Danish statesman
- Jørgen Friis, Danish bishop
- Kristian Friis Petersen (1867âÂÂ1932), Norwegian politician
- Lotte Friis (1988), Danish swimmer
- Michael Pedersen Friis (1857âÂÂ1944), Prime Minister of Denmark
- Nicolai Friis (1815âÂÂ1888), Norwegian politician
- Peder Claussøn Friis (1545âÂÂ1614), Norwegian author
- Søren Friis (born 1976), Danish football player
- Torsten Friis (1882âÂÂ1967), Swedish Air Force lieutenant general