From 2007 to 2009, Cabau was in a high profile relationship with Dutch singer Jan Smit. The couple's relationship was extensively covered in tabloid media. They broke up in 2009.

In 2009, Cabau started dating Dutch football player Wesley Sneijder. The couple married on July 17, 2010 in Tuscany, Italy, days after Sneijder had played the final of the 2010 FIFA World Cup. Following their marriage, they both changed their last name to Sneijder Cabau.