Alma is an 1891-built scow schooner, which is now preserved as a National Historic Landmark at the San Francisco Maritime National Historical Park in San Francisco, California.

A scow is a smaller type of barge. Some scows are rigged as sailing scows. In the 19th and early 20th centuries, scows carried cargo in coastal waters and inland waterways, having an advantage for navigating shallow water or small harbours. Scows were in common use in the American Great Lakes and other parts of the U.S., Canada, southern England, and New Zealand. In modern times their main purpose is for recreation and racing; there are also garbage scows for aquatic transport of refuse.