Carl of Sudermania - English also often: Charles ; Swedish Karl av Södermanland - as a ducal title may refer to:

• Charles IX of Sweden, King of Sweden 1604-1611
• Charles XIII of Sweden, King of Sweden 1809-1818 (and of Norway as Carl II)
• Charles Philip, Duke of Södermanland, Prince of Sweden 1601
• Prince Carl Oscar, Duke of Södermanland, Prince of Sweden and Norway 1852

• Saint Augustine High School
• Saint Augustine of Canterbury
• Saint Augustine of Hippo
• Saint Augustine, Trinidad and Tobago
• Saint-Augustin (Paris Métro)
• Saint Aurelius
• Saint Austell
• Saint Austromoine
• Saint Avitus
• Saint Bakhita
• Saint Barnabas
• Saint-Barthelemy
• Saint Bartholomew
• Saint Bartholomew's Day
• Saint Bartholomew's Day Massacre
• Saint Bartholomews Day Massacre
• Saint Bartholomew's Day, Massacre of
• Saint Bartholomew's Hospital
• Saint-Barthélemy (disambiguation)
• Saint-Barthélemy, France
• Saint-Barthélemy, Landes
• Saint-Barthélemy, Switzerland
• Saint-Barthélémy
• Saint Barts
• Saint Basil