Anne Beatrix Wilmot-Horton (née Horton, 1788 – 1871) was an English amateur botanist who was the dedicatee of the plant genus Hortonia and of Lord Byron’s poem 'She Walks in Beauty'.

She was born in 1788, the daughter of Eusebius Horton of Catton Hall, Derbyshire, and was co-heir to the estate with her sister Frances.

[2] On 11 June 1814, Lord Byron (who was her husband’s cousin) saw Anne in mourning-clothes at a party, and composed 'She Walks in Beauty' about her the next day.

Botanist Robert Wight dedicated the genus Hortonia to her 'on account of the lively interest she takes in botany.

She was the godmother of John 'Jackie' Fisher and, in one of his visits to her, aided his naval career by introducing him to Admiral Sir William Parker, who nominated him as a cadet.