Ron-Robert Zieler (born 12 February 1989) is a German professional footballer who plays as a goalkeeper for Hannover 96 and the Germany national team.
He began his professional career at Manchester United, where he did not play a competitive match, making his debut on loan at Northampton Town.
In 2010, he moved to Hannover 96, where he made 221 professional appearances across six seasons; he did not miss a Bundesliga game in any of his five final seasons.
Zieler joined Stuttgart in 2017 after one season with Leicester City.
A former German youth international, Zieler won the 2008 UEFA European Under-19 Championship.
He made his senior international debut in 2011, and was part of Germany's squads which reached the semi-finals of UEFA Euro 2012 and won the 2014 FIFA World Cup.