The GRG150 is an RG series solid body electric guitar model introduced by Ibanez in 2005. It is part of the entry-level GIO line.
As an entry-level RG, the GRG150 is based on the classic RG550 with a pickguard, 24 frets and HSH pickup configuration, but with the non-locking FAT-10 tremolo instead of a double locking tremolo. In 2013 the model was revived after a two-year hiatus, this time with a double-locking tremolo bridge.
The GRG150QA is a similar model with a quilted art grain top.