瓜伊马斯是墨西哥的城市，由索诺拉州负责管辖，位于该国西北部，始建于1769年，面积12,206平方公里，海拔高度10米，每年平均降雨量232毫米，2010年人口113,082。

Guaymas (Spanish pronunciation: [ˈɡwajmas]) is a city located in Guaymas Municipality in the southwest part of the state of Sonora in northwestern Mexico. The city is located 117 km south of the state capital of Hermosillo, and 242 miles from the U.S. border, and is the principal port for the state. The municipality is located in the Sonora Desert and has a hot, dry climate and 117 km of beaches. The municipality’s formal name is Guaymas de Zaragoza and the city’s formal name is the Heróica Ciudad de Guaymas.