Ivan Prtajin (born 14 May 1996) is a Croatian professional footballer who plays as a forward for German club 1. FC Kaiserslautern.
Prtajin started his career with the youth academy of Primorac. After playing for the youth academies of Arbanasi and Treà ¡njevka, he moved to the youth team of NK Zagreb at the age of 16. After two seasons with the youth team, he moved to Italian club Udinese in 2014 where he was assigned to Udinese Primavera (the reserve team). He made a total of 49 appearances for the reserves and scored 22 goals. His only involvement with the first team was being an unused substitute in a 4âÂÂ3 defeat against Cagliari Calcio.
By the end of 2016, Prtajin started training with Croatian club Hajduk Split. He featured in a number of friendlies for the club. In one of the friendlies against Jadran, he scored four goals. He finally signed for the club on 18 January 2017. He made his debut for the club in a 2âÂÂ1 victory over Slaven Belupo where he substituted Ante Erceg in the extra time.
On 27 July 2020, Prtajin joined Swiss club FC Schaffhausen on a two-year contract. He transferred to Slovenian club NK Olimpija Ljubljana in January 2022.
In August 2022, Prtajin signed for German 3. Liga club Wehen Wiesbaden on a two-year contract. He scored 15 goals and provided 5 assists in 27 matches during the 2022âÂÂ23 season as Wehen were promoted to the 2. Bundesliga, and his contract with the club was extended at the end of the season.
In June 2024, Prtajin signed for Bundesliga club Union Berlin.
On 11 June 2025, Prtajin moved to 1. FC Kaiserslautern in 2. Bundesliga.
In July 2017, a fire broke out in Dugopolje, a city where Hajduk Split players trained. Prtajin, along with Toma Baà ¡iÃÂ, Josip JuranoviÃÂ, Zvonimir Miliàand Jerko à  eparoviÃÂ, joined the firefighters in extinguishing the fire.