Jaco may refer to:
- Jaco Island, island of East Timor
- Jacó, Costa Rica, a town in Western Costa Rica
- Jaco, West Virginia
- Jaco the Galactic Patrolman, Japanese manga series
- Jaco, local name for the Dominican endemic red-necked amazon parrot
- Usual name for African grey parrot in a number of languages
Jaco is the name of:
- Jacó (footballer) (born 1996), Brazilian footballer
- Jaco Pastorius (1951–1987), a notable jazz bassist
- Charles Jaco (born 1950), a newscaster and radio personality
- William Jaco (born 1940), mathematician
- Wasalu Muhammad Jaco (born 1982), Lupe Fiasco, Chicago rapper
- Jaco (album), the unofficial title of the Pastorius/Metheny/Ditmas/Bley album
Jaco is the unofficial later title of a 1974 LP album on Paul Bley's Improvising Artists Label. It is notable for being the first professional recording showcasing the talents of Jaco Pastorius and Pat Metheny. The two had gotten to know each other in Miami the year before. Their collaboration continued on Metheny's debut Bright Size Life together with Bob Moses, recorded in December 1975. The record was released the following year by ECM - also home to Bley since his Open, To Love from 1972.
The original title was Pastorius/Metheny/Ditmas/Bley and the release number was IAI 373.846.
Jaco is a 2014 American documentary film that depicts the life and death of jazz musician Jaco Pastorius. The film is directed by Paul Marchand and Stephen Kijak, and was co-produced by Metallica bassist Robert Trujillo; along with John Battsek of Passion Pictures. It features interviews with musicians such as Sting, Joni Mitchell, Flea, Jerry Jemmott, Bootsy Collins, Wayne Shorter, Herbie Hancock, Carlos Santana, and never-before-seen photos and film from the Pastorius family archive.
Carlos Alberto Guimaraes Filho commonly known as Jacó (born 27 February 1996) is a Brazilian footballer who plays as a striker for Esporte Clube Bahia.