Lyell is a surname of Scotland traced to Radulphus de Insula, 11th-century Lord of Duchal Castle. "De insula" was subsequently translated into the Old French "de l'isle" and developed into a number of variants ([de] Lyell; [de] Lisle; [de] Lyle; see below). John Lyell in 1706 emigrated to Virginia and is the progenitor of the American Lyells.^{[citation needed]}

Lyell may refer to:

• Henry Lyell (1665-1731), Swedish-born English businessman
• Charles Lyell (botanist) (1767–1849), Scottish botanist

• Charles Lyell (1797–1875), British geologist; son of the botanist; 1st Baronet Lyell of Kinnordy
• Mary Horner Lyell (1808–1873), conchologist; wife of the geologist
• Katharine Murray Lyell (1817–1915), British botanist and author; sister-in-law of the geologist

• Leonard Lyell, 1st Baron Lyell (1850–1926), Scottish Liberal politician; son of Katharine Murray Lyell

• James Patrick Ronaldson Lyell (1871–1948), British solicitor, author, book collector, and bibliographer

• Charles Henry Lyell (1875–1918), Liberal MP; son of Leonard Lyell

• Charles Anthony Lyell, 2nd Baron Lyell (1913–1943), Victoria Cross recipient; son of Charles Henry Lyell

• Charles Lyell, 3rd Baron Lyell (1939–2017), Conservative member of the House of Lords; son of Charles Anthony Lyell

• George Lyell (1866–1951) Australian naturalist
• Maurice Lyell (1901 – 1975), lawyer

• Nicholas Lyell, Baron Lyell of Markyate (1938–2010), British Conservative politician at the centre of the Matrix Churchill affair, son of Maurice

• Lyell Island, in Canada
• Mount Lyell (disambiguation)
• Lyell, New Zealand, a historic gold mining settlement
• Lyells, Virginia, a crossroads in Richmond County, Virginia
• A panorama of Victoria Crater, Mars, taken by the Opportunity Rover
• Lyell (lunar crater)
• Lyell (Martian crater)

• Delisle (disambiguation)
• Lisle (disambiguation)
• Lyall (disambiguation)
• Lyle (disambiguation)

This disambiguation page lists articles associated with the title Lyell.
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