Early-attested site in the Parish of Whitchurch
- Wylmestone 1313 AD
- Wilmaston 1418 Deed
- Wylmyston 1425–1516 StratGild
- Wilmeston 1489 KnowleG 1540 BM
- Wilmston 1614 PCC
- Wimpston 1656 Dugdale
The forms are much too late for any certainty. 'Wilhelm 's (or Wīghelm 's) farm' is a possible origin, v. tun . Cf. Wilmington (PN D 629).