Musculus may refer to:
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Andreas Musculus
Andreas Musculus (Latinized name, Latinized for Andreas Meusel; 29 November 1514 – 29 September 1581) was a German Lutheran theologian and Protestant reformer.
Musculus was born in Schneeberg, Saxony, Schneeberg, "generally called only Musculus ...
(1514–1581), German Lutheran theologian
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Heinrich Musculus (b. 1868), Swedish-Norwegian businessperson
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Wolfgang Musculus (1497–1563), German Reformed theologian
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''Musculus'' (bivalve), a genus of mussels
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''Balaenoptera musculus'', the blue whale
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''Mus musculus'', the house mouse
{{disambiguation, surname