| Lago Puelo | |
| Native Name Lang: | es |
| Settlement Type: | Town |
| Pushpin Map: | Argentina |
| Pushpin Map Caption: | Location of Lago Puelo in Argentina |
| Coordinates: | -42.06°N -71.6°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Type1: | Province |
| Subdivision Name1: | Chubut |
| Subdivision Type2: | Department |
| Subdivision Name2: | Cushamen |
| Unit Pref: | Metric |
| Elevation M: | 230 |
| Population Total: | 3129 (2010)[1] |
| Population Density Km2: | auto |
| Blank1 Name: | Climate |
| Timezone1: | ART |
| Utc Offset1: | -3 |
| Postal Code Type: | CPA base |
| Postal Code: | U9211 |
| Area Code Type: | Dialing code |
| Area Code: | +54 02944 |
Lago Puelo is a town located in the Chubut Province, Argentina, 5km (03miles) north from Puelo Lake and the Lago Puelo National Park, and 15km (09miles) south from El Bolsón. With a population of 3,129 inhabitants in 2010, it is one of the towns that forms La Comarca Andina del Paralelo 42 (Andean Region of the 42nd parallel), an organization which includes towns and rural areas in or near the Andes and clustered around the 42nd parallel of latitude in Argentina.
With a population in constant growth due to the migration from larger cities in Argentina, this small town also offers a wide variety of artisans that display their crafts in the local fair of El Bolsón, or in the annual Forest Festival (Spanish: La Fiesta Del Bosque) which is usually held during January or February.Many of the town's inhabitants are native "porteños", i.e. people from Buenos Aires.
The climate of Lago Pueblo under the Köppen Classification system is a temperate oceanic climate (Cfb). Under the Trewartha climate classification system, the climate is classified as Crlk (maritime temperate, with mild summers and cool winters. Most precipitation is in the Austral winter months from May to August. Snowfall is frequent in the winter months.