Galileo \g(a)-li-leo\ as a boy's name is of Italian origin, and the meaning of Galileo is "from Galilee". The name of the great 16th- and 17th-century Italian astronomer, who built the first astronomical telescope and confirmed Copernicus' theory that the planets revolve around the sun.

Baby names that sound like Galileo are Galil and Kalil. Other similar baby names are Gaile and Gallo.