The boy's name Theodorus \the(o)-do-rus\ is a variant of Theodore. See also Thaddeus.
Similar baby names are Theodosius, Theodor and Theodoric.
Theodorus is a very rare male first name and a very rare surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Theodorus. Click here to compare Theodorus with related baby names.
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