Paugus Bay

Infobox lake
lake_name = Paugus Bay
image_lake =
caption_lake =
image_bathymetry =
caption_bathymetry =
location = Belknap County, New Hampshire
coords = coord|43|34|34|N|71|27|33|W|type:waterbody_region:US|display=inline,title
type =
inflow = Lake Winnipesaukee
outflow = Winnipesaukee River
catchment =
basin_countries = United States
length = convert|4.5|mi|abbr=on|lk=on
width = convert|0.8|mi|abbr=on|lk=on
area = convert|1220|acre|km2
depth =
max-depth =
volume =
residence_time =
shore =
elevation = convert|504|ft|abbr=on|lk=on
islands = Plummer Island; Big Island; Little Island
cities = Laconia: Weirs Beach, Lakeport

Paugus Bay is a convert|1220|acre|km2|sing=on water body located in Belknap County in the Lakes Region of central New Hampshire, in the city of Laconia. It is connected by a short channel at the village of Weirs Beach to Lake Winnipesaukee. With the 19th-century construction of a dam in the community of Lakeport (within Laconia), the elevation of Paugus Bay was raised to that of Lake Winnipesaukee, effectively making the smaller water body an arm of the larger one. Water flowing out of Paugus Bay travels down the Winnipesaukee River to the Merrimack River.