A cutting insert 1 according to an embodiment of the present invention has an upper surface 3, a lower surface 5, a side surface 7 connected to each of the upper surface 3 and the lower surface 5, and a cutting edge 9 located along an intersection of the upper surface 3 and the side surface 7. The upper surface 3 has a land surface 13 disposed along the cutting edge 9, a rake surface 15 which is located further inside than the land surface 13 and is inclined so as to have a smaller height as departing from the land surface 13, and a bottom surface 17 located further inside than the rake surface 15. The rake surface 15 has a projection-shaped first region 23 and a concave-shaped second region 25 which are alternately disposed along the bottom surface 17. The first region 23 has a first recess 27 that reaches the second region 25 adjacent to the first region 23.