The Hon. Anchitell Grey (c. 1624 – 8 July 1702) was an English politician who sat in the House of Commons in two periods between 1665 and 1695. Although he spoke rarely, he kept a detailed diary of proceedings in the House of Commons, summarising the speeches he heard. The diary, published in the 18th century, is the main surviving record for the debates in Parliament in most of the period that it covers.
Grey was the second son of Henry Grey, 1st Earl of Stamford and his wife Lady Anne Cecil, daughter of William Cecil, 2nd Earl of Exeter. He was the younger brother of Thomas Grey, Lord Grey of Groby.
He was likely educated at home as little is known about his education. He married Anne, daughter and co-heir of Sir Henry Willoughby, 1st Baronet. Anne was the widow of Sir Thomas Aston, 1st Baronet. Anne inherited her father's estate at Risley Hall in Derbyshire and brought Grey connections that likely led to his early appointments to local office.
Grey served as a commissioner for assessment in Derbyshire in 1657, and was appointed High Sheriff of Nottinghamshire for 1657–58. A Royalist, in 1659, he was arrested for supporting his brother-in-law Sir George Booth's uprising against the Rump Parliament.
After the Restoration, Grey was elected Member of Parliament for Derby in 1665 in the Cavalier Parliament. He was re-elected MP for Derby in 1679 for the First and Second Exclusion Parliaments and again in 1681. In 1689 he was elected MP for Derby again and sat until 1695.