Mount Waumbek is a mountain located in Coos County, New Hampshire.

The Starr King Trail climbs moderately to the summit of Mount Starr King where there used to be a lodge and then across the ridge to the wooded summit of Mount Waumbek.

On some older maps it is shown as "Pliny Major" in the uninhabited township of Kilkenny.

[3] A colony of gregarious Canada jays lives near the summit of Starr King year-round.

During the early 1960s, the northern flank of Waumbek was under consideration for a ski resort to be named Willard Basin Ski Area, but the project was terminated and the land conveyed to the federal government.