Fáfnir is a worm in Germanic folklore who is killed by a member of the Völsung family.
Fafnir or Fafner may also refer to:
Technology and engineering Bramo 323 Fafnir, a German radial piston aero-engine Fafnir (automobile), a German car and motor cycle manufacturer The Fafnir Bearing Company, a major American manufacturer of ball bearings. RRG Fafnir, a German pre-WW II high-performance glider RRG Fafnir 2, a single seat German high performance glider
Fiction Fafnir (Marvel Comics), an Asgardian monster and foe of the Thunder God Thor Fafner in the Azure, a Japanese anime series Fafnir, a planet in Larry Niven's Known Space universe Fighting Fefnir, a character in the Mega Man Zero series Fafnir, playable character in Smite (video game)
Other Fafnir (journal), a Nordic Journal of Science Fiction and Fantasy Research Fafnir, the star 42 Draconis Fafner (typeface) a typeface cut by Schelter & Giesecke Type Foundry in 1905 and revived by Oliver Weiss as WF Fafner in 2020. Drain Fafnir, Geist Fafnir, Wizard Fafnir, Mirage Fafnir and Vanish Fafnir, are Beyblade Burst