Last name Sinclair (Sinclair 
, סינקלייר 
, Синклер 
) , all around the world, is a common surname. The family name Sinclair is habitual in Jamaica, where it is a common surname, Isle of Man, where it is quite a common surname, and New Zealand (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Australia. Much less frequently, Sinclair is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sinclair | United Kingdom, Australia, United States, Canada, Jamaica |
| סינקלייר | Israel |
| Синклер | Russia |
| Сінклер | Ukraine |
St. Claire, Синцлаир, and ซินแคลร์
| william sinclair Bishop of Dunkeld (b. 1201) |
|
|
| henry sinclair Scottish soldier (died c.1330) (b. 1250) |
|
|
| william sinclair Scottish baron (died 1299x1303) (b. 1250) |
|
|
| william sinclair of roslin Scottish nobleman (b. 1250) |
|
|
|
henry i sinclair, earl of orkney Scottish and Norwegian nobleman, GB (b. 1345) |
|
| william sinclair Scottish nobleman, died 1330 (b. 1300) |
|
|
| robert sinclair Bishop of Orkney and bishop of Dunkeld (b. 1301) |
|
|
| elizabeth sinclair Peerage person ID=142247 (b. 1363) |
|
|
| henry ii sinclair Earl of Orkney (b. 1375) |
|
|
| william sinclair Scottish nobleman, last Jarl of Orkney; Lord Chancellor of Scotland, GB (b. 1410) |
|
|
| william sinclair Scottish Earl (b. 1459) |
|
|
| robert sinclair (1480-1507) (b. 1480) |
|
|
| elizabeth sinclair (1505-1580) (b. 1505) |
|
|
| henry sinclair Scottish lord-president of the court of session and bishop of Ross, GB (b. 1508) |
|
|
| andrew sinclair Scottish nobleman in Denmark, GB (b. 1555) |
|