The Sigiswanger Horn is named after the village of Sigiswang, which lies at the eastern foot of the mountain. Sigiswang is part of the municipality of Ofterschwang. According to Thaddäus Steiner the first half of the place name of Sigiswang goes back to the Old German personal name, Sigi. In early 19th century maps it was still written Siegeswanger Horn.