Arias is a Spanish surname.
Notable individuals with the surname include:
- Alberto Árias (born 1983), Dominican professional baseball pitcher
- Alex Arias, former MLB infielder
- Ana Claudia Arias (born 1973), American physicist
- Antonio Arias Bernal (1913–1960), Mexican artist and political cartoonist for United States Government
- Antonio Arias (disambiguation), several people
- Arnulfo Arias Madrid (1901–1988), president of Panama (1941-41, 1949-51, & 1968), brother of Harmodio
- Aurora Arias (born 1962), Dominican Republican writer, journalist and astrologer
- Carlos Arias (disambiguation), several people
- Clotilde Arias (1901–1959), Peruvian composer
- Daniel Arias (born 1998), American football player
- Daniela Arias (born 1994), Colombian footballer
- Diego Arias (born 1985), Colombian footballer
- Esteban Arias (born 1982), American soccer player of Mexican heritage
- Federico Arias (born 1979), former Argentine footballer
- Gabriel Arias (shortstop) (born 2000), Venezuelan baseball player
- George Arias (born 1972), former baseball player in Major League Baseball and Nippon Professional Baseball
- Harmodio Arias Madrid (1886-1962), president of Panama (1931, 1932-36), brother of Arnulfo
- Jhon Arias (born 1997), Colombian footballer
- Jimmy Arias (born 1964), former tennis touring professional player from the United States
- Jodi Arias (born 1980), American woman convicted of murder in widely-publicized trial
- Julien Arias (born 1983), French rugby union footballer
- Junior Arias (born 1993), Uruguayan footballer
- Lola Arias (born 1976), Argentine actress, writer, and director
- Luis Carlos Arias (born 1985), Colombian footballer
- Matthew Arias (born 1991), Mexican-American musician and picture editor
- Maximiliano Arias (born 1988), Uruguayan footballer
- Moisés Arias (born 1994), American actor
- Óscar Arias (born 1940), former President of Costa Rica
- Pepe Arias (1900–1967), Argentine actor and comedian
- Ramón Arias (born 1992), Uruguayan footballer
- Raúl Arias (born 1959), former Mexican first division footballer
- Ricardo Arias (politician) (1912–1993), former President of Panama
- Ricardo Arias Calderón (1933–2017), Panamanian politician
- Ricardo Arias (footballer) (born 1957), Spanish retired footballer who played as a defender for Valencia CF
- Santiago Arias (born 1992), Colombian footballer
- Wellington Arias (born 1991), Dominican amateur lightweight boxer
- Yosimar Arias (born 1986), Costa Rican footballer
- Maluma (Juan Luis Londoño Árias), Colombian singer