Arnulfo is a masculine given name. It is the Spanish and Italian form of the German name Arnulf.
As a given name
edit- Arnulfo Aparri, Jr., Filipino murder suspect
- Arnulfo Arias (1901–1988), Panamanian president
- Arnulfo Fuentebella (1945–2020), Filipino lawyer
- Arnulfo Mendoza (1954–2014), Mexican artist
- Arnulfo Trejo (1922–2002), American librarian
- Arnulfo Valentierra (b. 1978), Colombian footballer
As a surname
edit- Pietro Arnulfo (b. 1988), Italian footballer