The meaning of the Acronym SPG is...

SPG is

• Special Performance Group
• Smarty Pants The Great
• Submersibe Pressure Gauge
• Singapore Practice Grenade
• Society For Propagating The Gospel

More Meanings For SPG:

• Sprint Glossary
• Standard Procedure Guide
• Sequence Password Generator
• Sync Pulse Generator
• Submersible Pressure Gauge
• Student Predicted Graph
• Students Programming Group
• Study Planning Guide
• Sarong Party Girl
• Sarong Party Girls
• Special Performance Group
• Smarty Pants The Great
• Submersibe Pressure Gauge
• Singapore Practice Grenade
• Society For Propagating The Gospel

SPG is also in:

• Adults
• Electronics
• File Extensions
• Funnies
• General
• Ocean Science
• Security
• Unfiled
• Universities