A flexible display device includes a flexible substrate and a conductive pattern. The flexible substrate includes a bending part. The conductive pattern includes a first conductive pattern layer and a second conductive pattern layer disposed on the first conductive pattern layer, and at least a portion of the conductive pattern may be disposed on the bending part. The first conductive pattern layer has a first thickness and includes a first material, and the second conductive pattern layer has a second thickness smaller than the first thickness and includes a second material different from the first material.