Rigo 23 (born Ricardo Gouveia, 1966) is a Portuguese muralist, painter, and political artist residing in San Francisco, California. He is known in the San Francisco community for having painted a number of large, graphic "sign" murals including: One Tree next to the U.S. Route 101 on-ramp at 10th and Bryant Street, Innercity Home on a large public housing structure, Sky/Ground on a tall abandoned building at 3rd and Mission Street, and Extinct over a Shell gas station.
Rigo was born and raised on the island of Madeira. He later established himself as an artist in San Francisco, earning a BFA from San Francisco Art Institute in 1991 and an MFA from Stanford University in 1997. From 1984-2002, Rigo used the last two digits of the current year as part of his name, finally settling upon "23" in 2003.
The bulk of Rigo's work more literally highlights world politics and political prisoners from the Black Panthers and the Angola Three to Mumia Abu-Jamal, whose conviction for the murder of a policeman is contested, and the American Indian Movement's Leonard Peltier. Rigo create a controversial statue of Peltier that was removed from the grounds of the American University in January 2017.