Laguna Hanson
{{Short description|Lake in the Sierra de Juárez in Baja California state of Mexico}}
{{Infobox body of water
| name = Laguna Hanson
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| image = Laguna Hanson, Ensenada, Baja California, México 24-02-2019.png
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| location = Constitución de 1857 National Park, Baja California, Mexico
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| coordinates = {{coord|32|01|N|115|54|W|region:Mexico:waterbody|display =inline}}
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| elevation = {{convert|1620|m|ft}}
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| pushpin_map = Baja California
| pushpin_label_position = right
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| pushpin_map_caption = Location of Laguna Hanson in Baja California state
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| embedded = {{Designation list
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| designation1 = Ramsar
| designation1_offname = Laguna Hanson, Parque Nacional Constitución de 1857
| designation1_date = 2 February 2010
| designation1_number = 1934{{Cite web|title=Laguna Hanson, Parque Nacional Constitución de 1857|website=Ramsar Sites Information Service|url=https://rsis.ramsar.org/ris/1923|accessdate=11 February 2024}}}}
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Laguna Hanson is a lake in the Sierra de Juárez in Baja California state of Mexico. The lake is located in Constitución de 1857 National Park at {{convert|1620|m|ft}} elevation.V.M. Ponce, R.P. Pandey, S. Kumar (1999)Groundwater recharge by channel infiltration in El Barbon basin, Baja California, Mexico. Journal of Hydrology, Volume 214, Issues 1–4, 1999, Pages 1-7, ISSN 0022-1694, https://doi.org/10.1016/S0022-1694(98)00220-0.
The lake provides a feeding, resting, and breeding area for at least 29 species of birds, including the migratory birds gadwall (Mareca streptera) and redhead duck (Aythya americana).
The lake and its floodplain was designated a Ramsar site (wetland of international importance) in 2020. The Ramsar site covers an area of 511 hectares.