What rank is signified by a silver oak leaf insignia in the Navy?

The rank represented by a silver oak leaf insignia in the Navy is that of a Commander. The silver oak leaf is a distinctive insignia used to identify this rank, which is above a Lieutenant Commander and below a Captain. Commanders typically hold significant leadership roles and may command a department, division, or ship, and they are responsible for the execution of various missions and management of personnel under their command.

In understanding naval ranks, it's important to note that the silver oak leaf is a widely recognized symbol for a Commander, distinguishing it from other ranks that utilize different insignias. For instance, the Captain rank is indicated by four gold bars, while the Rear Admiral Upper Half is denoted by a silver star, and an Admiral is signified by four silver stars. This clear differentiation helps to establish the chain of command and the respective responsibilities associated with each rank.