Surname Trigo (Trigo 
, Tigu 
, Riwu 
) , around the world, is a common cognomen. The last name Trigo is characteristic of Portugal, where it is quite a common surname, Bolivia, and Chile. Measured by absolute frequency, it is commonest in Brazil, Argentina, and Portugal. Very seldom, Trigo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trigo | Portugal, Spain, Chile, Argentina, Brazil |
| Tigu | China, Romania, Ethiopia, United States, India |
| Riwu | China, Indonesia, Malaysia, United States, India |
| Триго | Kazakhstan, Russia |
|
adriano augusto trigo Portuguese engineer, PT (b. 1862) |
|
|
felipe trigo Spanish writer, ES (b. 1864) |
|
|
aníbal augusto trigo Portuguese engineer, PT (b. 1865) |
|
|
sandra trigo Argentinian politician, AR (b. 1901) |
|
|
ricardo trigo Argentinian actor, AR (b. 1906) |
|
|
marcelo ostria trigo Bolivian lawyer, columnist and diplomat, BO (b. 1935) |
|
|
julio trigo CU (b. 1925) |
|
| mariano trigo Spanish water polo player, ES (b. 1900) |
|
|
|
herminio trigo aguilar ES (b. 1943) |
|
| joan trigo serrano ES (b. 1897) |
|
|
| ciro félix trigo Bolivian lawyer and politician (1915-1967), BO (b. 1915) |
|
|
| manuel trigo díaz ES (b. 1907) |
|
|
| hélio do soveral rodrigues de oliveira trigo Brazilian writer (1918-2001), BR (b. 1918) |
|
|
| mário trigo (b. 1911) |
|
|
|
óscar trigo Spanish paralympic wheelchair basketball player, ES (b. 1972) |
|