Tiny Dynamine is an EP by Scottish alternative rock band Cocteau Twins, released on 4AD Records. The EP featured four non-album tracks. It was issued on 15 November 1985, two weeks prior to another EP, Echoes in a Shallow Bay. The two EP sets, which featured complementary artwork, were also released as a combined double EP in a gatefold cover and as an eight-track CD. The EP was later included in its entirety on the 1991 compilation The Box Set and the 2005 singles/EP collection Lullabies to Violaine.