Jacob Axel Gillberg (15 December 1769, Badelunda Parish [sv], Västmanland - 1 October 1845, Stockholm) was a Swedish portrait miniaturist and military officer.
His father, Jacob Gillberg [sv], was a copper engraver, who was serving as an Army draftsman at the time of his birth.
He received some guidance from the Danish miniaturist, Cornelius Høyer, during a visit there, and exhibited his first miniatures shortly after, in 1785.
[2] By 1790, he had gone abroad; spending several years in Holland, France, England and Belgium, where he studied with the miniaturist, Marie de Latour.
He also spent some time as a court painter for King Karl XIV Johan.