Pennant

A pennant is a distinguishing flag flown by naval or merchant vessels to indicate the presence of a commodore or admiral. In the United States Navy, a pennant is also flown over the national colors during religious services. Unlike the triangular pennant, most national and departmental flags are rectangular; the national flag of Nepal and the state flag of Ohio in the U.S. are the only notable modern flags to be a variation of the standard pennant.

---

In baseball, a pennant is a commemorative flag flown by the champion of a league, and has come to refer to the league championship itself.