The following information is taken from the Dictionary of the Older Scottish Tongue, available online at http://www.dsl.ac.uk/index.html. This is a work in progress.
| Spelling | Number | Dates & headers | 
|---|---|---|
| Nicoll | 4 | 1513-4 (bunch); 1542 (birsyn); 1585 (brek); 1618 (bakman) | 
| Colyn | 3 | 1484 (chanceler); 1510 (attechement, conȝe) | 
| Nichol | 3 | 1471 (assigna, comptrollour); 1504 (battaling) | 
| Nicol | 3 | 1488 (catale, commoun); 1597 (cousing) | 
| Colin | 2 | 1470 (constitute); 1507 (dans) | 
| Collin | 2 | c1550 (calp); 1551 (chefe) | 
| Colyne | 2 | 1549-50 (calp); 1550 (cousing) | 
| Nichole | 2 | 1406 (dame); 1569 (clippar) | 
| Nicholl | 2 | 1496 (awand); 1557 (clath) | 
| Nikky | 2 | 1473 (canves, chalmer) | 
| Colene | 1 | 1584 (chanceler) | 
| Coleyne | 1 | 1510 (barnis part) | 
| Necoll | 1 | 1556 (catioun) | 
| Nicholace | 1 | 1512 (cunȝe-) | 
| Nicholas | 1 | 1526-7 (cuppill) | 
| Nicole | 1 | 1603 (croce) | 
| Nychole | 1 | 1418 (borow) | 
| Nycholl | 1 | 1531 (almous-hous) |