Galilei is a surname, and may refer to:Galileo Galilei (1564–1642), astronomer, philosopher, and physicist. Vincenzo Galilei (1520–1591), composer, lutenist, and music theorist; father of Galileo Michelagnolo Galilei (1575–1631), Baroque lutenist and composer, brother of Galileo Alessandro Galilei (1691–1736), Florentine mathematician and architect
