Cognomen Sá (سا 
, Sá 
, Så 
, and others...) , around the globe, is a common last name. The cognomen Sá is habitual in Portugal, where it is quite a common surname, Guinea-Bissau, and Angola, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Portugal, Angola, and Brazil. Also, Sá is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| سا | Algeria, Iraq, Egypt, Saudi Arabia, Sudan |
| Sá | Brazil, Angola, Algeria, Portugal, Egypt |
| Så | Algeria, Egypt, Tunisia, Myanmar, Morocco |
| サ | Japan |
| Са | Russia, Kazakhstan, China, Ukraine, Armenia |
| rodrigo anes de sá (b. 1320) |
|
|
| joão rodrigues de sá, o das galés Portuguese diplomat, PT (b. 1355) |
|
|
|
estácio de sá Portuguese soldier; first Governor of Rio de Janeiro, PT (b. 1520) |
|
| mem de sá Brazilian politician, PT (b. 1500) |
|
|
| beatriz de sá (b. 1500) |
|
|
| manoel de sá Portuguese theologist, PT (b. 1530) |
|
|
| leonardo fernandes de sá Roman Catholic bishop, PT (b. 1550) |
|
|
|
salvador de sá Portuguese soldier and politician, PT (b. 1602) |
|
| martim correia de sá (b. 1575) |
|
|
| antónio de sá (b. 1620) |
|
|
| diogo correia de sá Portuguese poet, PT (b. 1669) |
|
|
| jerónimo sá (b. 1659) |
|
|
| joão antónio de sá pereira Portuguese nobleman and colonial administrator, PT (b. 1719) |
|
|
|
josé de vasconcelos e sá PT (b. 1775) |
|
| joaquim josé da costa e sá (b. 1740) |
|