Henry Thomas Alken – sports comic cartoonist in England.

Alken was born on 12 October 1785 in Soho, Westminster, and baptised on 6 November at St James's Church, Piccadilly. He was the third son of Samuel Alken, a sporting artist. Two of his brothers were George and Samuel Alken the Younger, also an artist. In 1789, the Alken family moved from Soho to 2, Francis Street East, Bedford Square.

Young Henry first studied under his father and then with the miniature painter John Thomas Barber Beaumont (1774–1841), also known as J. T. Barber. In 1801, Alken sent a miniature portrait of Miss Gubbins to the Royal Academy Exhibition. He exhibited a second miniature at the Royal Academy before abandoning miniature painting and taking on painting and illustrating. Early in his career, he painted sporting subjects under the name of "Ben Tally-O".

From about 1816 onwards Alken "produced an unending stream of paintings, drawings and engravings of every type of field and other sporting activity," and his soft-ground etchings were often colored by hand.

Alken provided the plates picturing hunting, coaching, racing and steeplechasing for The National Sports of Great Britain (London, 1821). Alken, known as an avid sportsman, is best remembered for his hunting prints, many of which he engraved himself until the late 1830s. He created prints for the leading sporting printsellers such as S. and J. Fuller, Thomas McLean, and Rudolph Ackermann, and often collaborated with his friend the sporting journalist Charles James Apperley (1779–1843), also known as Nimrod.

Nimrod's Life of a Sportsman, with 32 etchings by Alken, was published by Ackermann in 1842. In many of his etchings, Alken explored the comic side of riding and satirized the foibles of aristocrats, much in the tradition of other early 19th century omthe oldest of the great foxhound packs in Leicestershire. A collection of his illustrations can be seen in the print department of the British Museum.