Sebastian Georg Vollmer (German pronunciation: ; born July 10, 1984) is a former German American football offensive tackle. He played college football at Houston and was drafted by the New England Patriots in the second round of the 2009 NFL Draft.
Born in Kaarst, Germany, Vollmer did not start playing American football until he was 14 years old. He attended Quirinus Gymnasium, a secondary school in Neuss, Germany. He played American football for the Düsseldorf Panther and helped his team to a 25-0 record and two national Junior Bowl wins. After appearing in the 2004 Global Junior Championships in San Diego, California, he was recruited by college coaches as a 250-pound tight end.
Vollmer chose to attend the University of Houston, where he played for the Houston Cougars football team beginning in 2004. He redshirted his freshman season in 2004, and appeared in eight games as a reserve tight end in 2005. After requiring back surgery as a sophomore, Vollmer switched from tight end to left tackle, where he started 25 straight games for Houston. At Houston, Vollmer's offensive line coach was Joe Gilbert, who had previously worked at the University of Toledo, where he coached another future Patriots lineman, Nick Kaczur. As a senior, he was named to the first-team All-Conference USA at left tackle.