List of hamlets in Lewis County, New York
This is a list of the hamlets in Lewis County, New York.
| Name | Former name | Location | Elevation | GNIS Feature ID |
| Alpina | 972162 | |||
| Barnes Corners | 943043 | |||
| Beaver Falls | Beaverfalls, Castorville, Rohr's Mills | 943383 | ||
| Belfort | Monterey | 972214 | ||
| Bellwood | 972220 | |||
| Brantingham | 944651 | |||
| Briggs Corner | 972259 | |||
| Bushes Landing | 945315 | |||
| Clark Corners | 946753 | |||
| Collinsville | High Falls Village | 947163 | ||
| Crystal Dale | Crystaldale | 972354 | ||
| Dadville | 947986 | |||
| Deer River | French's Mills, Myers Mills | 948232 | ||
| Denmark | 948303 | |||
| Diana Center | Blanchards Settlement | 972381 | ||
| East Martinsburg | 972423 | |||
| Fish Creek | 972472 | |||
| Forest City | 972489 | |||
| Fowlersville | 972502 | |||
| Freeman Mill | 972510 | |||
| Glendale | 951201 | |||
| Glenfield | 951212 | |||
| Goulds Mill | 951421 | |||
| Greig | 951800 | |||
| Harrisburg | Harrisburgh | 972601 | ||
| Harrisville | ||||
| High Falls | 972616 | |||
| Hooker | 972623 | |||
| Houseville | 972628 | |||
| Indian River | 972650 | |||
| Jerden Falls | 972662 | |||
| Kimball Mill | 972688 | |||
| Kirschnerville | 954719 | |||
| Kosterville | 972695 | |||
| Lake Bonaparte | 954896 | |||
| Leisher Mill | 972717 | |||
| Locust Grove | 970313 | |||
| Lyonsdale | 956209 | |||
| Martinsburg | Martinsburgh | 956600 | ||
| Michigan Mills | 972796 | |||
| Mohawk Hill | 972808 | |||
| Monteola | 972810 | |||
| Naumburg | Naumberg, Naumburgh, Prussian Settlement | 958301 | ||
| New Boston | 958392 | |||
| New Bremen | Dayansville | 958394 | ||
| New Campbellwood Wye | 972833 | |||
| North Croghan Crossing | 972861 | |||
| North Osceola | 972871 | |||
| Number Four | 959057 | |||
| Old Campbellwood Wye | Old Campbellwood Y | 972891 | ||
| Osceola | 959510 | |||
| Otter Creek | 959561 | |||
| Page | 972907 | |||
| Parkers | 972917 | |||
| Parson Mill | 972919 | |||
| Petries Corners | Petrie's Corners | 960255 | ||
| Pine Grove | 972945 | |||
| Rector | 972988 | |||
| Remington Corners | 962373 | |||
| Shuetown | 973066 | |||
| Soft Maple | 973083 | |||
| Sperryville | 973105 | |||
| Swancott Mill | 973130 | |||
| Talcottville | Leyden | 967005 | ||
| Texas | 973148 | |||
| Watson | 968923 | |||
| Welch Hill | 973215 | |||
| West Leyden | 970784 | |||
| West Lowville | 970786 | |||
| West Martinsburg | West Martinsburgh | 970789 | ||
| Wetmore | 973257 | |||
| Windecker | 973276 |