Johnny Galecki is 49 years and 6 month(s) old. He was born in 30 Apr, 1975. Johnny Galecki was born in Bree, Belgium on April 30, 1975. His parents were American’s who were stationed in Belgium because his father Richard was in the United States Air Force. His mother Mary Noon worked as a mortgage consultant. Between the two parents there was a mixture of Polish blood, Irish blood, and Italian blood. His full name is John Mark Galecki.