The 35-year-old called time on his career after leaving Bayern Munich at the end of last season but has revealed he could stage a comeback if he misses the sport.
"I always say: never say never," Robben told NPO Radio.
"Maybe in one or two months I'll have a strange feeling that I miss the whole thing too much and will decide I have to go back.
"But of course it doesn't get any easier the longer you're retired. I do not rate the chances [of returning] very highly."
Robben began his career in his native Netherlands with Groningen before moving to PSV Eindhoven.
Jose Mourinho priced him to Chelsea from Holland in 2004 and he was part of the Blues side that won back-to-back Premier League titles in 2005 and 2006.
Robben added another league title to his trophy collection after joining Real Madrid in the summer of 2007 but it was at Bayern Munich where he really forged his reputation as one of the best wingers in world football.
In 10 years at Bayern Munich, Robben won eight Bundesliga titles as well as numerous domestic cups and he also scored the winning goal in the Bavarians’ 2-1 win over Borussia Dortmund in the 2013 UEFA Champions League final.
Robben made 96 appearances for the Dutch national team, scoring 36 goals and was an integral member of their squads that lost the 2010 FIFA World Cup final to Spain and finished in third place at the Mundial four years later in Brazil.
