Athletics at the 1955 Pan American Games

The athletics competition at the 1955 Pan American Games was held in Mexico City, Mexico.

Women's events
A = affected by altitude

Participating nations
• (17)

• (2)

• (17)

• (13)

• (16)

• (9)

• (1)

• (12)

• (8)

• (8)

• (7)

• (47)

• (4)

• (2)

• (5)

• (1)

• (2)

• (50)

• (4)

• (17)