The Hamburg Sea Devils were an American football team that began play in NFL Europa from 2005. They played their home games at Hamburg's HSH Nordbank Arena (also home to the Bundesliga soccer side Hamburger SV). They played their first game on April 2, 2005 losing 24-23 to the Cologne Centurions (who were the newest NFL Europe franchise before the Sea Devils). Also, the Sea Devils' very first ever win came in Week 3 of the 2005 season, with a 31-24 home victory over the then-struggling Rhein Fire.

Their first head coach was Jack Bicknell, previously head coach of the defunct Barcelona Dragons and Scottish Claymores. The Sea Devils had directly replaced the Claymores after the 2004 season.

On April 1 2006, the Sea Devils recorded their very first tie in franchise history. At home, they scored 17 points in the second quarter, against the Berlin Thunder. They had blown their 17-point lead before regulation ended. When no one scored in overtime, the game ended in a draw. This was only the second tie in the NFL Europa history. The previous tie came in the 1992 season between the Birmingham Fire and the London Monarchs. The final score for that game was also 17-17.

On March 29, 2007, Bicknell resigned, citing health issues as the reason. He was replaced by offensive coordinator Vince Martino.

On June 23, 2007, the Sea Devils won their first World Bowl championship with a 37-28 victory over the defending champion Frankfurt Galaxy. It was also their last, as NFL Europa disbanded almost immediately following the game. As a result, the Sea Devils are the last team to win a WLAF/NFL Europe/NFL Europa game ever.

The Sea Devils were brought to American media attention again on July 14, 2007, when 2006 team member Mike Jemison was arrested in Pennsylvania for robbery. Also Thomas Herrion was a Offensive tackle allocated to the team by the San Fransico 49ers. Herrion passed away after a preseason game against the Denver Broncos in August 2005. His number 68 was selected to be the number for the 2006 jerseys.

The Sea Devils should not be confused with the Hamburg Blue Devils, a German Football League team.

Season-by-season

|- | colspan="6" align="center" | Hamburg Sea Devils (NFL Europe) |- |2005 || 5 || 5 || 0 || 4th League || -- |- |2006 || 3 || 6 || 1 || 5th League || -- |- | colspan="6" align="center" | Hamburg Sea Devils (NFL Europa) |- |2007 || 7 || 3 || 0 || 1st League || Won World Bowl XV (Galaxy) |- !Totals || 16 || 14 || 1 |colspan="2"| (including playoffs) |}