Jakob Griesinger (c. 1407 – 11 October 1491) was a German Roman Catholic professed religious from the Order of Preachers and a former soldier.

[2] Griesinger's beatification received approval from Pope Leo XII on 3 August 1825.

Griesinger became a soldier in Naples in 1432 after having stopped in Bologna and then going on a pilgrimage to Rome in Lent to visit the tombs of Simon Peter and Paul the Apostle - he enlisted due to not having enough funds to go back home.

He soon became disillusioned with his life there and spent time as the private aid to a solicitor in Capua from 1437 when he exited until 1441.

He spent the remainder of his life working in the art of stained glass and painting images on church windows.