Which insignia indicates the rank of Commander (O-5)?

The insignia that indicates the rank of Commander (O-5) in the Navy is represented by four gold 1/2-inch stripes below a gold five-pointed star. This design clearly differentiates the rank of Commander from other officer ranks, as the combination of stripes and the star provides an immediate visual cue to others, reflecting the Commander’s authority and status within the military hierarchy.

In the Navy officer rank insignia system, the number of stripes is a key feature that signifies different ranks, and the addition of the star further confirms the rank level being represented. This structured insignia system helps maintain order and clarity in rank identification among personnel.