奥林匹克山脉（Olympic Mountains）是太平洋山脉的一部分，位于美国华盛顿州西部的奥林匹克半岛，与西雅图隔普吉特海湾相望。它的大部分都位于奥林匹克国家公园内，是美国西海岸著名的风景区。

The Olympic Mountains are a mountain range on the Olympic Peninsula of western Washington in the United States. The mountains, part of the Pacific Coast Ranges, are not especially high – Mount Olympus is the highest at 7,962 ft (2,427 m); however, the eastern slopes rise out of Puget Sound and the western slopes are separated from the Pacific Ocean by the 20 to 35 km (12 to 22 mi) wide Pacific Ocean coastal plain. The western slopes are the wettest place in the 48 contiguous states. Most of the mountains are protected within the bounds of the Olympic National Park.