PROBLEM TO BE SOLVED: To provide a gripper and a needle holder in which an object and a suture needle are stably gripped in narrow spaces, and thereby handling and hand movement are possible effectively and stably.SOLUTION: A needle holder 100 includes: a nipping arm member 21； an attachment 20 having a nipping arm supporting member where the nipping arm member 21 is arranged, and the nipping arm member 21 is supported in a turning manner around a turning axis O11； a needle holder body 10 where the attachment 20 is arranged in the tip side and a grip part 11B is formed in a base end side； a nipping arm opening/closing drive unit having a nipping operation unit 31 and a nipping operation transmission unit； a turning operation lever； and a nipping arm turning drive unit having a turning operation transmission unit. The nipping operation transmission unit includes flexible transmission members 33, 35.SELECTED DRAWING: Figure 5
