To provide a lens barrel which realizes reliability and ease of handling in securing a flexible printed board therein without causing displacement.

A driving member which moves along an optical axis and a fixing member which is secured on the driving member are provided and a flexible printed board is fixed onto the fixed member. The flexible printed board is secured by tucking a fixing part (of the fixing member) between two tongues 5a, 5b located with a space in between on each side of the flexible printed board in a width direction and the fixed part 6c prevents the flexible printed board from rising. Cutout portions provided on the fixing member enables checking of weather the flexible printed board is secured onto the fixing member or not.