Sincerely II (シンシアリー・ツー, Shinshiarī Tsū) is a compilation album by Japanese singer/songwriter Mari Hamada, released on February 23, 2005 by Tri-M/MidZet House.

The sequel to 1989's Sincerely, it is Hamada's second ballad-oriented album, featuring four new songs and two re-recordings of her past hits.

This was her last release under the MidZet House label, with Tokuma Japan's reorganization transferring her to the Meldac label on her next release.

[1][2] Sincerely II peaked at No.

[3] All lyrics are written by Mari Hamada, except where indicated