三河湾
is a bay located at the mouth of the Kiso Three Rivers between Mie and Aichi Prefectures in Japan. Ise Bay has an average depth of and a maximum depth of . The mouth of the bay is and is connected to the smaller Mikawa Bay by two channels: the Nakayama Channel and the Morosaki Channel. Mikawa Bay is subsequently joined to the Pacific Ocean by the Irako Channel, which ranges from in depth.