The US Post Office issued a set of four postage stamps to commemorate the exposition, with designs depicting a profile of Vasco Núñez de Balboa (1¢), the Pedro Miguel Locks of the Panama Canal (2¢), the Golden Gate (5¢), and the discovery of San Francisco Bay (10¢).
The stamps were first put on sale in 1913, to promote the coming event, and perforated 12, and then reissued in 1914 and 1915, perforated 10.
Their prices today range widely; the 2¢ of 1913 is available for under a dollar in used condition, while an unused 10¢ of the scarcer orange-yellow variety in 1915 can be worth up to a thousand United States dollars.

The United States Congress authorized the San Francisco Mint (also known as "The Granite Lady") to issue a series of five commemorative coins.
Said coins were the 1915-S silver Panama-Pacific half dollar and four gold coins.
The denominations of the gold coins were $1, $​2 ¹⁄₂ (quarter eagle) and $50 (in two types: a round coin, and an unusual octagonal coin).
The Panama-Pacific coins have the distinction of being the first commemorative coins to bear the motto "In God We Trust", and were also the first commemoratives to be struck at a branch mint.
 The two lower denomination gold coins are scarce, while the two $50 ones are extremely rare.
 The silver half dollar had a mintage of 27,134 and in modestly worn condition is available for several hundred dollars.

Numismatist Farran Zerbe supervised the creation of a series of commemorative medals, an award medal, a souvenir medal, and diplomas.
The US Post Office issued a set of four postage stamps to commemorate the exposition, with designs depicting a profile of Vasco Núñez de Balboa (1¢), the Pedro Miguel Locks of the Panama Canal (2¢), the Golden Gate (5¢), and the discovery of San Francisco Bay (10¢). The stamps were first put on sale in 1913, to promote the coming event, and perforated 12, and then reissued in 1914 and 1915, perforated 10. Their prices today range widely; the 2¢ of 1913 is available for under a dollar in used condition, while an unused 10¢ of the scarcer orange-yellow variety in 1915 can be worth up to a thousand United States dollars.
The United States Congress authorized the San Francisco Mint (also known as "The Granite Lady") to issue a series of five commemorative coins. Said coins were the 1915-S silver Panama-Pacific half dollar and four gold coins. The denominations of the gold coins were $1, $​2 ¹⁄₂ (quarter eagle) and $50 (in two types: a round coin, and an unusual octagonal coin). The Panama-Pacific coins have the distinction of being the first commemorative coins to bear the motto "In God We Trust", and were also the first commemoratives to be struck at a branch mint.  The two lower denomination gold coins are scarce, while the two $50 ones are extremely rare.  The silver half dollar had a mintage of 27,134 and in modestly worn condition is available for several hundred dollars.
Numismatist Farran Zerbe supervised the creation of a series of commemorative medals, an award medal, a souvenir medal, and diplomas.
Panama–Pacific International Exposition