Wikimedia Commons has media related to St. Louis Cardinals (NFL) players.

This category is all NFL players who played for the St. Louis Cardinals, now known as the Arizona Cardinals. There are separate categories for each era of the franchise:

• Category:Chicago Cardinals players (1920–1959)
• Category:St. Louis Cardinals (football) players (1960–1987)
• Category:Phoenix Cardinals players (1988–1993)
• Category:Arizona Cardinals players (1994–)

Players should be included in each category that applies.