"(Love Is) Thicker Than Water" is a song performed by Andy Gibb, released in September 1977 as the second and final single by RSO Records from his debut album, Flowing Rivers (1977).

Billboard magazine describes the song as "a midtempo ballad that changes pace from a lushly romantic and soft [Andy] Gibb vocal to an uptempo instrumental drive.

[3] Cash Box said that "the choral harmonies are full of pop appeal, while the arrangement adds a grandiose touch that will attract more progressive tastes.

[6]"(Love Is) Thicker than Water" was recorded in October 1976 at the Criteria Studios in Miami, Florida, during the same time as "I Just Want to Be Your Everything".

[6] Billboard reviewed the song concluding that it has "plenty of melody and another catchy hook.