海军元帅（英语：Admiral of the fleet）是海军军衔中等级最高者，在很多国家该军衔仅在战争时授予。美国海军此等级的军衔被称为海军五星上将。

• 皇家澳大利亚海军元帅
• 德国海军元帅
• 奥匈帝国海军元帅
• 苏联海军元帅、海军元帅 (苏联)
• 美国海军五星上将
• 英国海军元帅
• 该舰队的海军上将 唯一的法国历史是弗朗索瓦·达尔朗)
• 大日本帝国海军元帅

An admiral of the fleet or fleet admiral (sometimes also known as admiral of the navy or grand admiral) is a military naval officer of the highest rank. In many nations the rank is reserved for wartime or ceremonial appointments. It is usually a rank above admiral (which is now usually the highest rank in peace-time for officers in active service), and is often held by the most senior admiral of an entire naval service.