Mariano Díaz Mejía (born 1 August 1993), known as Mariano, is a professional footballer who plays as a striker for Spanish club Real Madrid.
Shortly after making his debut for Badalona in 2011, Mariano joined Real Madrid, where he played in the C-team and then the reserves, where he was top scorer in the 2015–16 Segunda División B. He then began playing with the first team, and was part of their squad that won La Liga, the UEFA Champions League and the FIFA Club World Cup in 2016–17. He was subsequently signed by Ligue 1 club Olympique Lyonnais but returned to Madrid one year later.
Mariano was born in Spain to a Spanish father and a mother from the Dominican Republic. He played and scored in a friendly match for the Dominican Republic national team in 2013. He then retired from the Dominican Republic team in the hopes of representing Spain.
On 29 August 2018, Real Madrid announced they had signed Mariano on a five-year contract. As Real Madrid owned 35% of his playing rights, the fee was reduced to €23 million. He was issued shirt number 7, previously worn by Cristiano Ronaldo. After his second spell at Madrid started, Mariano made his debut for the club on 19 September 2018, coming on as a 73rd-minute substitute against Roma in the first fixture of the 2018–19 UEFA Champions League group stage, and scored the last goal of a 3–0 victory with a curved shot from outside the penalty area. On 1 March 2020, after just one minute of coming off the bench during his first league appearance of the season, he doubled Real Madrid’s lead in a 2–0 victory against FC Barcelona in the 90th minute. He made five appearances during the league season, as Real Madrid won the 2019–20 La Liga.