Sense of Self (センス・オブ・セルフ, Sensu obu Serufu) is the 17th studio album by Japanese singer/songwriter Mari Hamada, released on August 27, 2003, by Tri-M/MidZet House.

It was released to coincide with the 20th anniversary of Hamada's music career.

The album was reissued alongside Hamada's past releases on January 15, 2014.

73 on Oricon's albums chart.

[3] All lyrics are written by Mari Hamada; all music is composed by Hiroyuki Ohtsuki, except where indicated; all music is arranged by Hiroyuki Ohtsuki and Mari Hamada, except where indicated.