The Gibson ES-225 is a thinline hollowbody electric guitar model produced by the Gibson Guitar Corporation between 1955 and 1959.

It is notable as the first thinline hollowbody guitar produced by Gibson.

The ES-225 was originally introduced in 1955 as the ES-225T, a thinline hollowbody guitar featuring a Florentine cutaway, the Les Paul combined bridge and tailpiece (also used on the Les Paul from 1952 to 1953 and on the ES-295), a laminated pickguard, and a single P-90 pickup mounted in an unusual position midway between the bridge and the end of the fingerboard.

[1][2] The specifications remained the same during the period the guitars were manufactured, with the exception that in 1959 a few guitars were made with separate trapeze-style tailpieces and floating Tune-o-matic bridges.

[1] When the guitar was initially marketed it was the first thinline hollowbody guitar Gibson had produced,[3] preceding the Byrdland and ES-350T models.