Pico Peak is a mountain in the Green Mountains in Rutland County, Vermont, United States. Pico Peak is flanked to the south by Ramshead Peak. To the north, it faces Deer Leap Mountain across Sherburne Pass. Seen from the pass, the summit of Pico Peak resembles a cone.
Pico Peak is the northernmost mountain of the Coolidge Range, and the second highest mountain in that range after Killington Peak. In 1927 the State Legislature named the Coolidge Range after Vermont native Calvin Coolidge. The range runs between Pico Peak and the town of Plymouth, where Coolidge grew up.
The peak's name may stem from the Abenaki for "the pass/opening" or indeed from the Spanish or Portuguese word for "peak", Pico. "Pico Peak" appears on the 1869 Beers Atlas of Rutland County, Walling's 1860 Map of the State of Vermont and Chace's 1854 Map of Rutland County.
The northeast side of Pico Peak drains into Kent Brook, thence into the Ottauquechee River, the Connecticut River, and into Long Island Sound in Connecticut. The southeast side of Pico drains into Roaring Brook, and thence into the Ottauquechee.