Leoncio
Leoncio or Leôncio may refer to:
- Leoncio Afonso,, Spanish academic in the geography, history and toponymics of the Canary Islands
- Ricardo Leoncio Elías Arias, Peruvian soldier and politician, briefly President of Peru from March 1–5, 1931
- Leoncio Basbaum or Leôncio Basbaum, Brazilian Marxist historian
- Leoncio P. Deriada, Filipino writer
- Leoncio Evita Enoy, intellectual, painter and writer from Equatorial Guinea
- Leoncio Prado Gutiérrez, Peruvian mariner
- Leoncio Lara is a Mexican composer and former rock band member
- Bárbara Leôncio, young Brazilian athlete, world champion in the 200 metres in 2007
- Carlos Leôncio de Magalhães, Brazilian farmer and businessman
- Leoncio Morán Sánchez, Mexican politician from the National Action Party
- Leoncio Alonso González de Gregorio, 22nd Duke of Medina Sidonia, Spanish aristocrat and historian
- Leoncio Vidal, Cuban revolutionary that fought in the Cuban War of Independence
