This is a list of major mountain peaks in the U.S. State of Colorado.

This article comprises three sortable tables of major mountain peaks^{[lower-alpha 1]} in Colorado.

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.^{[lower-alpha 2][lower-alpha 3]} The first table below ranks the 55 highest major summits of Colorado by elevation.
2. The topographic prominence of a summit is a measure of how high the summit rises above its surroundings.^{[lower-alpha 4][lower-alpha 3]} The second table below ranks the 50 most prominent summits of Colorado.
3. The topographic isolation (or radius of dominance) of a summit measures how far the summit lies from its nearest point of equal elevation.^{[lower-alpha 5]} The third table below ranks the 50 most isolated major summits of Colorado.

Of the highest major summits of Colorado, the following 63 peaks exceed 4000 meters (13,123 feet) elevation^{[lower-alpha 6]} and 117 peaks exceed 3000 meters (9843 feet) elevation.

Of the most prominent summits of Colorado, only Mount Elbert exceeds 2000 meters (6562 feet) of topographic prominence. Three peaks are ultra-prominent summits with more than 1500 meters (4921 feet) of topographic prominence and 14 peaks exceed 1000 meters (3281 feet) of topographic prominence.

Of the most isolated major summits of Colorado, Mount Elbert exceeds 1000 kilometers (621.4 miles) of topographic isolation and three peaks exceed 100 kilometers (62.14 miles) of topographic isolation.

• Mount Elbert in the Sawatch Range is the highest peak of the Rocky Mountains.
• Mount Massive in the Sawatch Range is the second highest peak of the Rocky Mountains.
• Mount Harvard is the highest of the Collegiate Peaks and the third highest peak of the Rocky Mountains.
• La Plata Peak in the Collegiate Peaks is the fifth highest peak of the Rocky Mountains.
• Blanca Peak is the highest peak of the Sangre de Cristo Mountains and the second most topographically isolated peak of Colorado.
• Uncompahgre Peak is the highest peak of the San Juan Mountains and the sixth highest peak of the Rocky Mountains.
• Crestone Peak is the highest peak of the Crestones and the seventh highest peak of the Rocky Mountains.
• Mount Lincoln is the highest peak of the Mosquito Range and the eighth highest peak of the Rocky Mountains.
• Castle Peak is the highest peak of the Elk Mountains and the ninth highest peak of the Rocky Mountains.
• Grays Peak is the highest peak of the Front Range, the highest point on the Continental Divide, and the tenth highest peak of the Rocky Mountains.
• Longs Peak is the highest peak in Rocky Mountain National Park and northern Colorado.
• Impressive Mount Sneffels in southwestern Colorado is often said to be the most beautiful mountain in the state.
• Pikes Peak is the second most topographically prominent mountain summit of Colorado and the easternmost fourteener. The peak sits on top of Pikes Mountain.
• This photograph of the legendary Mount of the Holy Cross was taken by William Henry Jackson in 1874.
• The Spanish Peaks in southern Colorado are two prominent mountains which can be seen for many miles.

• Bibliography of Colorado
• Geography of Colorado
• History of Colorado
• Index of Colorado-related articles
• List of Colorado-related lists
• Outline of Colorado