William Thomas Stuart Porterfield (born 6 September 1984) is an Irish former cricketer from Northern Ireland and a former captain of the Ireland cricket team. He played first-class cricket for Gloucestershire and Warwickshire. A left-handed batsman, he played for Ireland from 2006 to 2022, and has captained Ireland at all levels from Under-13 and is considered one of the greatest Irish cricketers of all time.
| Format | Matches | Runs | Avg | 100s/50s | Top Score | Wickets | Bowl Avg | Best Bowling | Catches/St |
| Test | 3 | 58 | 9.66 | 0/0 | 32 | – | – | – | 2/– |
| ODI | 148 | 4,343 | 30.58 | 11/20 | 139 | – | – | – | 68/– |
| FC | 136 | 6,867 | 31.64 | 11/34 | 207 | 2 | 69.00 | 1/29 | 146/– |
| LA | 294 | 8,958 | 31.99 | 15/49 | 139 | – | – | – | 142/– |
