Nicholas Horner (died 3 March 1590) was an English Roman Catholic layman, hanged, drawn and quartered because he had "relieved and assisted" Christopher Bales, a seminary priest.

He was arrested on the charge of harbouring Catholic priests and committed to Newgate Prison, where he was kept for a long time close confined in a cell.

[2] During the procedure, he was assisted by John Hewitt, a priest and fellow prisoner, also originally from York.

[3] After a year, he was set free through the efforts of some friends, and worked at his trade at some lodgings at Smithfield.

[4] Horner was convicted of a felony for making a jerkin for a priest, and as he refused to conform to the public worship of the Church of England, was condemned.