Alington is a surname, and may refer to:
- Cyril Argentine Alington (1872-1955), headmaster of Eton College & Shrewsbury School, & writer
- Elizabeth Alington (1909 – 1990), wife of Prime Minister of the United Kingdom, Alec Douglas-Home
- Giles Alington (disambiguation), multiple people
- Hildebrand Alington, 5th Baron Alington (1641–1723)
- Rev. Hugh Alington, headmaster of Summer Fields School
- William Alington (d.1446), English statesman
- William (Bill) Alington, New Zealand modernist architect
- William Alington, 1st Baron Alington (d. 1648)
- William Alington, 3rd & 1st Baron Alington (died 1684)