This surname is borne by Peter Stringer of Ireland's rugby team. Records I've found indicate past and present British and Irish families named "Stringer." Houseofnames.com (an unreliable source) claims that the name came from the Normans, and was brought to England in the conquest of 1066. According to that same site, it means "strong" from the German "streng." However, the surname could also come from the occupation 'stringer', a person who strings beads. (Other meanings of 'stringer', such as "horizontal support post" and "freelance writer", came into existence after the first recorded use of the surname).