| Name | Dates | Notes |
| unknown | c.975 | First abbot |
| lfm r | 994 c1009 | Became bishop of Selsey |
| Lyfing of Winchester | c.1009 1027 | Became bishop of Worcester |
| Aldred | c. 1027 c. 1043 | Became bishop of Worcester |
| Sihtric | c. 1043 1082 | Became a pirate |
| Geoffrey | c. 1082 c. 1088 |
| Wimund | before 1096 1102 | Deposed by the Synod of Westminster in 1102 |
| Osbert | ? before1131 |
| Robert of Plympton | c. 1131 1145 |
| ?Roger | c. 1146 |
| Robert Postel | c. 1146 1154 |
| Walter of Winchester[2] | c. 1154 c. 1168 |
| Godfrey | c. 1168 c. 1173 |
| Baldwin | 1174 1184 |
| Herbert | 1186 1200 |
| Andrew | 1200 1202 |
| Jordan | c. 1203 1219/1220 |
| William of Kernit | 1220 | [2] |
| John of Rofa | 1224 | [2] |
| Alan of Cornwall | 1233 | Previously prior of Tresco[3] |
| Robert of Kitecnol | 1248 | [2] |
| Thomas | 1248 | [2] |
| Henry of Northampton | 1257 | [2] |
| Philip Trencheful | 1259 | [2] |
| (vacant) | 1259 | Appointment lapsed to Walter Branscombe, Bishop of Exeter.[4] |
| Alured | 1260 | [2] |
| John Chubbe | 1262 1269 | Deposed by Bishop Branscombe[5] |
| Robert Colbern | 1270 | [2] |
| Robert Campbell/Champeaux[6] | 1285 1325 (died) | "Of the abbots in the later monastic period ... probably ... the greatest and wisest"[4] |
| (vacant) | 1325 1328 | Dispute between two candidates, Robert Busse and John Courtenay (eldest son of Hugh de Courtenay, 9th Earl of Devon)[6] |
| Robert(?) Bonus[2][7] | 1328 1333 (excommunicated) | Bishop Grandisson said of him "That Abbot's name was Good, but he was a scoundrel, a near-heretic!"[8] |
| John Courtenay[2] | 1334 | Suspended by Bishop Grandisson for maladministration[9] |
| Richard Esse | 1349 | [2] |
| Stephen Langdon | 1362 | [2] |
| Thomas Cullyng | 1380 or 1381 | The last of five abbots after Campbell who were all accused of waste, extravagance and neglecting their spiritual duties.[4] |
| John Mey | 20 July 1402 | [10] |
| Thomas Mede | March 1422 April 1442 | [11] |
| Thomas Crispyn | 11 June 1442 5 April 1447 | [12] |
| William Pewe | 2 May 1447 26 December 1450 | [12] |
| John Dynyngton | February 1451 December 1490 | [13] |
| Richard Yeme | February 1491 c. March 1492 | [14] |
| Richard Banham | 1492 1523 | [15] |
| John Peryn | 1523 1539 | Last abbot[2] |