| William Chatterton | |
| Succession: | 2nd Baronet of Castle Mahon |
| Reign: | 9 April 1806–1855 |
| Predecessor: | Sir James Chatterton, 1st Baronet |
| Successor: | James Charles Chatterton |
| Birth Date: | 5 August 1794 |
| Death Date: | 1855 |
| Noble Family: | Chatterton |
| Spouse: | Henrietta-Georgiana Iremongor |
| Father: | Sir James Chatterton, 1st Baronet |
| Mother: | Rebecca Lane |
Sir William Abraham Chatterton, 2nd Baronet (1794–1855) was an Irish baronet.[1]
Chatterton was educated at Trinity College, Dublin.[2] He was succeeded by his brother Sir James Charles Chatterton, 3rd Baronet.[3]
| Notes: | Granted 1 July 1801 by Chichester Fortescue (Ulster).[4] |
| Escutcheon: | Or a lion head erased Azure between three mullets Gules. |
| Crest: | An antelope's head erased Argent horned Or and pierced through the neck with an arrow. |
| Motto: | Loyal A Mort |