Boulder Post Office

US Post Office-Boulder Main
U.S. National Register of Historic Places
U.S. Historic district Contributing property
Post office in 2009
Location	1905 Fifteenth St., Boulder, Colorado
Coordinates	40.017899°N 105.2762264°W / 40.017899; -105.2762264
Area	0.8 acres (0.32 ha)
Built	1910
Architect	James Knox Taylor
Architectural style	Renaissance Revival, Classical Revival
Part of	Downtown Boulder Historic District (ID80000878)
MPS	US Post Offices in Colorado, 1900--1941, TR
NRHP reference No.	86000164
Significant dates
Added to NRHP	January 22, 1986
Designated CP	December 3, 1980

The Boulder Post Office, also known as Boulder Main Post Office, at 1905 Fifteenth St. in Boulder, Colorado, was built in 1910. It was listed on the National Register of Historic Places at US Post Office—Boulder Main in 1986.

It is a rectangular building taking up nearly all of the site's 220 by 150 feet (67 m × 46 m) footprint. It has Renaissance Revival and Classical Revival details and was designed by the supervising architect of the U.S. Treasury James Knox Taylor. It has a metal hipped roof.

It was deemed significant as "a well preserved and rare example of the type of post office building constructed during James Knox Taylor's tenure as Supervising Architect. The building is a notable interpretation of Classical and Renaissance Revival styling and has considerable urban design significance in relation to the town's civic center."

It is also a contributing building in the Downtown Boulder Historic District, which was NRHP-listed in 1980.

Following the 2021 Boulder shooting, local Congressman Joe Neguse introduced legislation to have the post office named after police officer Eric Talley, who was killed while responding to the shooting.