Marello is an Italian surname. Notable people with the surname include:
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Alex Marello (born 1988), Canadian soccer player
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José Luis Marello (born 1965), Argentine sprint canoeist
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Joseph Marello
Giuseppe Marello (known as Joseph Marello in English; 26 December 1844 – 30 May 1895) was an Italian Roman Catholic prelate who served as the Bishop of Acqui from 1889 until his death and was also the founder of the Oblates of Saint Joseph. Ma ...
(1844–1895), Italian Roman Catholic bishop
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Joseph Marello Institute, a private Catholic high school named after him
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Maria Marello (born 1961), Italian discus thrower
{{surname
Italian-language surnames