(31 August 2010 - present) (2 children)
In January, 2009, Sobieski began dating fashion designer Adam Kimmel. Kimmel is the son of American real estate developer Martin Kimmel and grandson of American boat racer and designer Donald Aronow. They were engaged on May 28, 2009, but chose to keep the news private. It was made public on June 23, 2009, when fans at the premiere of Public Enemies spotted that Sobieski was wearing an engagement ring. The couple officially announced their engagement on July 17, 2009.
Their daughter, Louisanna Ray, was born in December, 2009 and son Martin, was born in August, 2014.