Kevin Christian Trapp (German pronunciation: [ˈkɛvɪn ˈtʁap]; born 8 July 1990) is a German professional footballer who plays as a goalkeeper for Ligue 1 club Paris FC.

Trapp began his professional career at 1. FC Kaiserslautern, where he took part in two Bundesliga seasons. In 2012, he signed for Eintracht Frankfurt for a fee of €1.5 million and played regularly over three years, also competing in the UEFA Europa League. He joined Paris Saint-Germain for an estimated €10 million in 2015, where he won several domestic honours. In 2018, he re-joined Eintracht Frankfurt on loan, before signing permanently the next season.

Trapp won 21 caps for Germany's youth teams, including 11 for the under-21s, and made his full debut in June 2017. He was part of their squad that won the 2017 FIFA Confederations Cup and also competed at the 2018 FIFA World Cup, UEFA Euro 2020 and the 2022 World Cup.

Born in Merzig, West Germany, Trapp began his football career at FC Brotdorf, joining at seven years old. He moved to neighbouring town, SSV Bachem aged twelve. After spending two years there, Trapp joined SV Mettlach. One day, he said in an interview on joining 1. FC Kaiserslautern, saying:

I told my coach I'd like to be down there on the pitch one day. I went home afterwards and from my own incentive, I looked up FC K and what opportunities they were offering. They were having trials. I wrote them an email explaining my situation and that I'd love to take part in the trials. I think it was September when I received a reply saying that it was currently not possible, however, that they would contact me in case the opportunity arose again. That is what they did a year later! 2003 or 2004. I was allowed to take part in the training sessions and from then on, everything took flight. I had the honour of being invited to play for the first team back when I was in the youth leagues due to the goalkeepers being off sick. SVV Bachum were already playing Youth Bundesliga. Kaiserslautern was also in that league. Therefore, when I got to play, it was a match against Kaiserslautern. I found out later as I was offered the contract that there were a bunch of coaches there watching the game. So, it wasn't just the email but also the performance!

Trapp started his professional career with 1. FC Kaiserslautern, where he progressed through the club's youth system. During his time at 1. FC Kaiserslautern, Trapp said he learned a lot from Gerald Ehrmann.

Trapp made his first appearance in the first team on 9 August 2008 in the 2008–09 DFB-Pokal round 1 against FC Carl Zeiss Jena, losing 2–1. It was announced on 21 July 2009 that he signed his first professional contract with the club, keeping him until 2013. Trapp made another appearance in the first team ten days later on 31 July 2009 in the 2009–10 DFB-Pokal round 1 against Eintracht Braunschweig, where he kept a clean sheet, in a 1–0. Over the next two seasons, Trapp was involved in the first team, appearing as the club's third choice goalkeeper and then second choice goalkeeper. At one point during the 2009–10 season, he suffered a shoulder injury that kept him out for three months. By January, Trapp made a recovery.

Since the start of the 2010–11 season, Trapp became the club's second goalkeeper for the side and was featured on the substitute bench. On 12 March 2011, with regular goalkeeper Tobias Sippel sidelined with influenza, he made his Bundesliga debut in a 2–1 home win over SC Freiburg. Competing with Sippel, Trapp played all eight remaining fixtures of the season. During which, he kept three clean sheets for the side, including two in a row between 23 April 2011 and 29 April 2011 against Schalke 04 and FC St. Pauli. At the end of the 2010–11 season, Trapp went on to make nine appearances in all competitions.