|Full name||Christian Sivebæk|
|Date of birth||19 February 1988|
|Place of birth||Saint-Étienne, France|
|Height||1.91 m (6 ft 3 in)|
|Current club||Vejle Boldklub|
|2007–2008||→ Skive (loan)||16||(1)|
|2012||Seattle Sounders FC||3||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 15 September 2013.
† Appearances (Goals).
He is son of the former Denmark international, John Sivebæk.
Sivebæk began his youth career with Vejle Boldklub . In 2005 he signed his first professional contract with FC Midtjylland and made his first team debut with the club in 2006. He made his Danish Superliga debut on August 6, 2006, replacing Claus Madsen in a 2-5 victory at the grounds of his former club Vejle. During the 2007 season he was sent on loan to Skive IK to gain more experience. The following season he returned to Midtjylland and began to display some of his great potential. On March 23, 2008 he scored his first goal for Midtjylland, in 3-2 defeat at Aalborg.
On January 11, 2012 it was announced that Sivebæk would be joining Seattle Sounders FC in Major League Soccer. He made his Sounders debut on March 17, 2012 in a 3-1 win in the season opener against Toronto FC.
On June 20, 2012, the Sounders waived Sivebæk after only making three appearances for the club.
Sivebæk has represented Denmark at various youth levels from the Under-18 to the Under-21 side. He represented the Denmark national under-21 football team on five occasions making his debut in 2009.