Chris Maragos (born January 6, 1987) is an American former professional football player who was a safety and special teamer in the National Football League (NFL). He played college football for the Western Michigan Broncos before transferring to the Wisconsin Badgers. Maragos was signed by the San Francisco 49ers as an undrafted free agent in 2010. He also played for the Seattle Seahawks and Philadelphia Eagles.

Maragos was a football and track star for three years at Park High School in Racine, Wisconsin. During his junior year in 2003, he started at wide receiver for Park's varsity team. After securing a playoff berth, Park was eliminated in the first round of the playoffs by eventual state championship runner-up Arrowhead. During the off-season, Park's longtime head coach retired, leading to a changing of the guard in the football program.

Citing philosophical differences with the new regime, Maragos transferred to Racine's Horlick High School, which featured a pass-happy spread offense and emerging quarterback talent Justin Kammler. Maragos's first game as a Horlick Rebel was a road contest against his former school in August 2004. The rivalry game quickly became a lopsided affair, as Maragos dominated his former team with nine catches, 115 yards receiving, and a touchdown en route to a 29–6 victory. According to Rebels coach George Machado, Maragos was heaped with verbal abuse during the game but "he maintained himself with class." Maragos continued his torrid stretch in the first four games of his senior season, recording 27 catches for 359 yards and two touchdowns.

During this time, Machado called Maragos "one of the best [football players] to play here" and "a gentleman, [and] a good student, [who] comes from a strong family. He is a very strong positive influence on this football team." His statistics and the Rebels' offensive production dipped when Kammler was sidelined with an injury. Maragos made a statement with his talent, being named Horlick Player of the Year and first-team All-Racine County, All-Southeast Conference, and All-Region.

As he weighed his collegiate options, Maragos eventually chose to attend Western Michigan, a school already home to future NFL Pro Bowl receiver Greg Jennings.

Maragos redshirted at Western Michigan in 2005, where he played as a wide receiver. Upon arrival at the school, the first player to introduce himself to Maragos was senior wide receiver Greg Jennings. He became somewhat of a mentor to Maragos, teaching him the intricacies of excelling as a collegiate wide receiver and giving him rides to church on Sundays. Maragos was inspired by the star player's dedication to his craft, saying, "he would always be first in the meetings, front row, pen out, ready to learn, ready to do things."

After starting eight games at wide receiver for Western Michigan during the 2006 season, Maragos transferred to Wisconsin and sat out a year (due to NCAA transfer rules) before resuming play in 2008. During this time, he was converted to defense, where he became a standout free safety. In two years with the Badgers he recorded five interceptions and 94 tackles. Maragos had six passes defensed in his 2009 senior season, including one that helped end a comeback attempt by Northern Illinois and secure a 28-20 Badger victory. He was also Wisconsin's placekicking holder for extra points and field goals. During a 2009 road game against Ohio State, he scored a touchdown at that position on a fake field goal attempt.

Maragos was undrafted in the 2010 NFL draft. He signed with the San Francisco 49ers on April 26, 2010.