Holm is a Scandinavian surname that means “islet” or “small island.” It is a relatively common surname in Denmark, Norway, and Sweden, and has also spread to other parts of the world through migration. The name likely originated from people who lived near or on small islands, and the surname became a way to distinguish different families in the same area. Today, there are many notable individuals with the surname Holm, including athletes, politicians, and actors.