Francis Phoebus (Basque: Frantzisko Febus, French: François Fébus, Occitan: Francés Fèbus, Spanish: Francisco Febo; 4 December 1467 – 7 January 1483) was King of Navarre (1479–1483), Viscount of Bearn, and Count of Foix (1472).

He was the son of Gaston, Prince of Viana, and grandson of Queen Eleanor, whom he succeeded.

His succession was approved by the Agramont party, while the Beaumont party fell behind Ferdinand the Catholic who started to build up political and military pressure on the Kingdom of Navarre in the run-up to the fully-fledged invasion of 1512.

During his brief reign, he was under the protection of his mother, the regent Magdalena of Valois.

He died young while playing the pipe, arguably poisoned.