Cha-19 or No. 19 (Japanese: 第十九號驅潜特務艇) was a No.1-class auxiliary submarine chaser of the Imperial Japanese Navy that served during World War II.
She was laid down on 26 March 1942 at the Shizuoka shipyard of the Miho Shipyard Co., Ltd. (株式會社三保造船所) and launched on 31 January 1943.[1] She was completed and commissioned on 18 April 1943 and assigned to the Yokosuka Defense Force, Yokosuka Naval District. On 1 July 1943, she was reassigned to 66th Guard Force. On 30 January 1944, Douglas SBD Dauntless dive bombers and Grumman F6F Hellcat fighters from Task Group 52.8 comprising fleet carriers Enterprise, Yorktown, and Bunker Hill and escort carrier Belleau Wood, sink Cha-19, Cha-14, and Cha-28, northeast of Mili Atoll in the Ratak Chain of the Marshall Islands.[2] [1] [3] She was removed from the Navy List on 31 March 1944.[1]