Public domain art: pigs
Artworks depicting pigs, catalogued by the museums that hold them. Each one is free to download, with its colour palette extracted from the image and its maximum print size measured at 300 DPI.
Works in Public domain art: pigs

Barnyard Scene
Anthonie van Borssom

Three Saints: Roch, Anthony Abbot, and Lucy
Cima da Conegliano (Giovanni Battista Cima)

The Temptation of Saint Anthony
Pieter Huys

The Bell Inn
George Morland

The Return from the Hunt
Piero di Cosimo (Piero di Lorenzo di Piero d'Antonio)

The Yard of the Inn at Emmaus
David Ryckaert III

The Hen-Pecked Husband
Bartholomeus de Momper

"More Pigs Than Teats",–or–the New Litter of Hungry Grunters, Sucking John-Bull's-Old-Sow to Death
James Gillray

The Pigs Possessed:–or–the Broad Bottom'd Litter Running Headlong into Ye Sea of Perdition
James Gillray

The Farm Yard
Henry Kingsbury

A Daisy Cutter with His Varieties
Thomas Tegg

Humors of Houndsditch, or Mrs. Shevi in a Longing Condition
Thomas Tegg

Paris Diligence
Thomas Tegg

Paris Diligence
Thomas Tegg

Comforts of an Irish Fishing Lodge
Thomas Rowlandson

Comforts of an Irish Fishing Lodge
Thomas McLean

Jews at a Luncheon
Thomas Rowlandson

Man Seated; Sketch of a Pig's Head (from Sketchbook)
Francis William Edmonds

The Prodigal Son
Daniel Lindtmayer