Wallingford may refer to:

• Wallingford, Oxfordshire, England, a town
  • Wallingford Castle, a ruined castle in the town

• Wallingford, Connecticut, a town
• Wallingford, Iowa, a city
• Wallingford, Kentucky, an unincorporated community
• Wallingford, Pennsylvania, an unincorporated community
• Wallingford, Seattle, a neighborhood of the city of Seattle, Washington
• Wallingford, Vermont, a town
  • Wallingford (CDP), Vermont, a census-designated place in the town

• Municipal Borough of Wallingford
• Wallingford Rural District
• Wallingford (UK Parliament constituency), a former constituency, abolished in 1885

• Brian of Wallingford, also known as Brien FitzCount
• Ealdgyth of Wallingford, wife of Robert D'Oyly
• J. Rufus Wallingford, a.k.a. Get-Rich-Quick Wallingford, fictional con man created by George Randolph Chester
• Jesse Wallingford (1872–1944), British sport shooter
• John of Wallingford (d. 1214), English monk and abbot of St. Albans abbey
• John of Wallingford (d. 1258), English monk and chronicler
• Miles of Wallingford, also known as Miles Crispin
• Phoebe Tyler Wallingford
• Richard of Wallingford (constable)
• Richard of Wallingford (mathematician)
• Wallingford Riegger
• Wayne Wallingford, American politician
• William of Wallingford

• Wallingford station (disambiguation)