The stately Billiard Room was a later addition completed in 1933. It features a spectacular 15th-century Spanish ceiling embellished with decorative friezes, along with Gothic doorways, a carved stone hearth, and a Flemish tapestry from the 1500s.

In the early 20th century, such spaces were typically where men retired after dinner; however, that social custom was swiftly discarded at Hearst Castle.

Instead, according to Pat Lake, the niece of Hearst's partner Marion Davies, all guests were recalled to the Billiard Room after dining, where both men and women would challenge each other to a game.

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