'''Boysen''' may refer to:
==People== * Boysen (surname), list of people with the surname
==Other uses== *Boysen Dam, rockfill dam in Wyoming, U.S. *Boysen Reservoir, reservoir formed by Boysen Dam *Boysen State Park, public recreation area surrounding the Boysen Reservoir *''Bert och Boysen'', Swedish diary novel written by Anders Jacobsson and Sören Olsson *{{look from}}
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