List of mountain peaks of Washington

This article comprises three sortable tables of major mountain peaks of the U.S. State of Washington.

The summit of a mountain or hill may be measured in three principal ways:
 * 1) The topographic elevation of a summit measures the height of the summit above a geodetic sea level.  The first table below ranks the 100 highest major summits of Washington by elevation.
 * 2) The topographic prominence of a summit is a measure of how high the summit rises above its surroundings. The second table below ranks the 50 most prominent summits of Washington.
 * 3) The topographic isolation (or radius of dominance) of a summit measures how far the summit lies from its nearest point of equal elevation. The third table below ranks the 25 most isolated major summits of Washington.

Highest major summits
Of the major summits of the State of Washington, Mount Rainier exceeds 4000 m elevation, four peaks exceed 3000 m elevation, and 97 peaks exceed 2000 m elevation.

Most prominent summits
Of the most prominent summits of the State of Washington, Mount Rainier exceeds 4000 m of topographic prominence, five peaks exceed 2000 m, seven peaks are ultra-prominent summits with more than 1500 m of topographic prominence, and 40 peaks exceed 1000 m of topographic prominence.

Most isolated major summits
Of the major summits of the State of Washington, Mount Rainier exceeds 1000 km of topographic isolation, three peaks exceed 100 km, and 16 exceed 40 km of topographic isolation.