A multiway cock (1) has a cock body (2), a cock member (3), and a cover (4). The cock body (2) has a circular tube part (20) that has a first portion (21) and a second portion (22) arranged parallel to each other along the axis (101) of the circular tube part. A first port (P1) and a second port (P2) are formed in the outer periphery of the first portion (21), and a third port (P3), a fourth port (P4), a fifth port (P5), and a sixth port (P6) are formed in the outer periphery of the second portion (22). The cock member (3) has a barrel part in which a first flow passage and a second flow passage are formed, a lever installation part (31), and a lever (32). Opening or closing of the first to sixth ports (P1-P6) formed in the first portion (21) and the second portion (22) can be selected by rotating the cock member (3).
