|Full name||Juan Miguel Callejón Bueno|
|Date of birth||11 February 1987|
|Place of birth||Motril, Spain|
|Height||1.78 m (5 ft 10 in)|
|2005–2007||Real Madrid C|
|2007–2008||Real Madrid B||35||(8)|
|2009–2010||→ Albacete (loan)||29||(1)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 12 March 2017.
Callejón was born in Motril, Granada. In 2005–06, he played in 33 games and scored eight goals for Real Madrid's Juvenil A and, in March 2007, he made his senior debut for the club's B-team, finishing the season in the second division with two goalless substitute appearances as the side dropped down a level.
In 2007–08, Callejón played together with brother José as Real B were now in division three. On 11 August 2008, he signed a four-year contract with RCD Mallorca, leaving in the same transfer window as his twin brother – the Balearic Islands club retained 75% of the player's rights. He made his La Liga debut on 25 September 2008 in a 2–0 home win over CD Numancia, starting in what would be his only league match in the entire campaign.
On 25 August 2009, Callejón was loaned to Albacete Balompié in the second division, in a season-long move. He stayed in the category for 2010–11, joining Córdoba CF in his native Andalusia on a free transfer.
In January 2013, after 1½ second-level seasons of irregular playing time with Hércules CF, free agent Callejón signed for Levadiakos F.C. of Greece on a 1½-year deal. In July he switched clubs and countries again, joining Bolivia's Club Bolívar. He scored four goals in twelve appearances in the latter's semi-final run in the Copa Libertadores and, on 30 November 2014, he netted a hat-trick in a 6–1 win over Club Real Potosí to keep his team on top of the Liga de Fútbol Profesional Boliviano, and him as the top scorer; in a 2–1 win over the same opponents on 19 March 2015, both he and teammate Jhasmani Campos were sent off for retaliation.
- "Los gemelos Callejón, hermanos pero rivales en el terreno de juego" [Callejón twins, brothers but rivals on the pitch] (in Spanish). Join Futbol. 22 October 2008. Retrieved 10 July 2013.
- "3–1: Xerez-Castilla" (in Spanish). Real Madrid C.F. 30 March 2007. Retrieved 21 June 2008.
- "Juanmi Callejón" (in Spanish). Real Madrid C.F. Retrieved 21 June 2008.
- "Mallorca land Real Madrid attacker Juanmi Callejón". Real Madrid Fansite. 11 August 2008. Retrieved 11 August 2008.
- "Albacete: llega cedido Juanmi Callejón" [Albacete: Juanmi Callejón arrives on loan] (in Spanish). esFutbol. 25 July 2009. Retrieved 25 July 2009.
- "Mercado: Juanmi Callejón se desvincula del Mallorca y ficha libre por el Córdoba" [Market: Juanmi Callejón cuts ties with Mallorca and joins Córdoba on a free transfer] (in Spanish). Goal.com. 19 August 2010. Retrieved 19 August 2010.
- Στον Λεβαδειακό ο Καγεχόν [Callejón to Levadiakos] (in Greek). Gazzetta. 31 January 2013. Retrieved 1 February 2013.
- "Bolívar ficha al español Juanmi Callejón" [Bolívar sign Spaniard Juanmi Callejón] (in Spanish). Deporte Total Bolivia. 16 July 2013. Retrieved 17 May 2015.
- "Bolívar golea y se acerca al título del Apertura" [Bolívar thrash and get closer to the Apertura title] (in Spanish). Agencia de Noticias Fides. 30 November 2014. Retrieved 17 May 2015.
- "Con poco brillo, Bolívar derrota 2–1 a Real Potosí" [In unassuming fashion, Bolívar defeats Real Potosí 2–1] (in Spanish). Correo del Sur. 19 March 2015. Retrieved 17 May 2015.