Sigtryggsson

Sigtryggsson may refer to:


 * Ánláf Sigtryggsson, 10th-century Norse-Gael who was King of Northumbria and Dublin
 * Guðrøðr Sigtryggsson (died 951), King of Dublin
 * Harald Sigtryggsson (died 940), Viking leader who ruled Limerick
 * Olaf Sigtryggsson, son of Sigtrygg Silkbeard, the Hiberno-Norse King of Dublin
 * Ragnar Sigtryggsson (1925–2009), Icelandic footballer
 * Rúnar Sigtryggsson (born 1972), Icelandic Olympic handball player