GattiItalian Means "cat" in Italian, originally a nickname for an agile person.
LeeuwenhoekDutch Means "lion's corner" in Dutch. The first bearer of this name lived on the corner (Dutch hoek) of the Lion's Gate (Dutch Leeuwenpoort) in the city of Delft.
SinghHindi, Marathi, Nepali, Punjabi, Indian (Sikh) From Sanskrit सिंह (siṃha) meaning "lion". In 1699 Guru Gobind Singh gave all his Sikh male followers the surname Singh and all females Kaur. It is among the most common surnames in India.
Van LeeuwenhoekDutch Variant of Leeuwenhoek. A famous bearer of this surname is Antonie van Leeuwenhoek (1632-1723), a pioneer in the field of microscopy.