Matanuska may refer to: Matanuska Formation, the northern Chugach Mountains, Alaska Matanuska Glacier, in the Chugach Mountains, Alaska Matanuska Peak, a mountain summit in the Chugach Mountains, Alaska Matanuska River, in Alaska Matanuska-Susitna Borough, Alaska, in Alaska Matanuska-Susitna Valley, in Alaska Matanuska Valley Colony in Alaska M/V Matanuska, a vessel in the Alaska Marine Highway System Matanuska (crater), an impact crater on the minor planet 253 Mathilde