Pack Monadnock or Pack Monadnock Mountain 2,290 feet (700 m), is the highest peak of the Wapack Range of mountains and the highest point in Hillsborough County, New Hampshire.

The mountain, a monadnock, is located in south-central New Hampshire within the towns of Peterborough and Temple.

A firetower and ledges on the summit offer long views north to the White Mountains, west to Mount Monadnock, and south into Massachusetts.

A seasonal automobile road ascends from the south to a picnic area at the summit.

The mountain's summit at Peterborough is also home to the transmitter of two Manchester-market radio stations: NOAA Weather Radio station WNG575 and 92.1 WDER-FM, which airs a Christian talk and preaching format.