John Comerford (1770–25 January 1832) was an Irish miniature painter active in Kilkenny and Dublin.

His first commissions were of family members, including Jane, Anne, and Michael Langton of High Street, Kilkenny in 1794, and Lady Dunsany.

[1] He exhibited in London at the Royal Academy in 1804 and 1809, was very successful and gained a high reputation as a miniature-painter in Dublin, and had a large and lucrative practice in his art.

[1]He was a popular artist, receiving commissions from the Irish landed gentry, the military, and the clergy, as well as more prominent figures including Daniel O'Connell, James Gandon, Richard Lovell Edgeworth, and Lord Charlemont.

[4] In 1819, the Dublin Society of Artists, which had been for some years torn by internal dissensions, applied for a charter of incorporation.

[1][4] Comerford painted the portraits of a number of his closest friends, including Vincent Waldré and William Ashford.

He also taught a number of artists, such as John Doyle and Thomas Clement Thompson, and was a strong influence on Samuel Lover.

[1] While visiting Gandon in Lucan, Comerford suffered from an apoplectic seizure,[4] and later died on 25 January 1832 at his home at 28 Blessington Street.