CD-63 was a C Type class escort ship (Kaibà Âkan) of the Imperial Japanese Navy during the Second World War.
She was laid down by Mitsubishi at their Kobe Shipyard on 1 July 1944, launched on 20 September 1944, and completed and commissioned on 15 October 1944. During the war CD-63 was mostly busy on escort duties.
On 18 June 1945, in Toyama Bay, the submarine was sunk by the combined efforts of the escort ships , CD-63, CD-75, CD-158 and .
On 10 August 1945 CD-63 struck a mine in Nanao Bay, and was badly damaged and beached to prevent sinking. Struck from the Navy List on 30 September 1945, she was scrapped by 30 April 1948.