Moritsugu is a Japanese-language surname. Notable people with the name include:
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Jon Moritsugu (born 1965), American cult/underground filmmaker
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Kenneth P. Moritsugu (born 1945), American physician and public health administrator
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Kim Moritsugu
Kim Moritsugu is a Canadian writer. An alumna of the University of Toronto, she worked in a corporate setting for several years before publishing her debut novel, ''Looks Perfect'', in 1996. She has since published three more novels, and teaches ...
, Canadian writer
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Kohji Moritsugu (born 1943), Japanese actor
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Japanese-language surnames