On 30 August 2014, Ljajić made his 2014–15 season debut in a 2–0 win for the Giallorossi over Fiorentina. On 24 September, he scored his first goal of the season in a 2–1 Roma victory over Parma. On 6 December, he scored his first brace for Roma, which allowed Roma to come back and draw the home match against Sassuolo, which finished 2–2. On 26 February 2015, he scored his first goal in the UEFA Europa League for the club, the opener in a 2–1 win away to Feyenoord. He concluded the season with 41 appearances and 9 goals, making him the club's second-highest goalscorer of the season, after Francesco Totti.
