Robert Bradley Kassell (born January 7, 1980) is an American former professional football linebacker who played in the National Football League (NFL). He played college football for the North Texas Mean Green and was signed by the Tennessee Titans as an undrafted free agent after the 2002 NFL draft. Kassell also played for the New York Jets.

Kassell attended Llano High School in Llano, Texas and was a letterman in football as a quarterback. In football, as a senior, he rushed for 1431 yards and 20 touchdowns and passed for 839 yards and eight touchdowns, he was named the Class 3A All-West MVP, and won All-State second-team honors. Brad Kassell graduated from Llano High School in 1998.

Kassell was a four-year letterman who played in 44 games at the University of North Texas and was named Sun Belt Conference Defensive Player of the Year during his junior and senior season. Kassell received a unanimous first-team selection to the conference teams and was team MVP in his final two seasons. He ranks third on the school's all-time tackle list.

In 2002, he was signed as an undrafted free agent by the Tennessee Titans. He played for the team from 2002 to 2005.

In 2006, Kassell was signed as a free agent by the New York Jets. He led the Jets special teams with 26 tackles in 2007. His only professional interception was returned for a touchdown in 2005.

On February 19, 2009, Kassell was released by the Jets.^[1]

In 2012, Kassell joined Catz Sports Performance and Physical Therapy in Austin, TX, where he is President and Partner.^[2]

2014, he started teaching and coaching at Lago Vista High School in Lago Vista, Texas. During his tenure, he has coached the linebacker position during football season, powerlifting, and been the head of Girls' Track and Field. ^{[3] [4]}

• New York Jets bio
• Tennessee Titans bio