Sep Visser (Dutch pronunciation: [sɛp ˈfɪsər]; born 14 December 1990) is a Netherlands international rugby union player.
He joined the Newcastle Falcons Academy as a teenager, following his brother Tim Visser.
He joined brother Tim, who was the top scorer in the 2010–11 Magners League.
[2] He has been capped 15 times by the Netherlands national rugby union team His father, Marc Visser, is the most capped played for the Netherlands national rugby union team.
His brother Tim represents the Scotland national rugby union team.