Jorge Alonso Martín (born 5 January 1985) is a Spanish footballer who plays as a midfielder for CD Casillas.

He amassed Segunda División totals of 144 matches and 11 goals during eight seasons, representing in the competition Salamanca, Hércules, Valladolid and Racing de Santander.

[1] After Real Zaragoza expressed desire to sign him for its youth system, he eventually started playing with local UD Salamanca in 2004, appearing in only one Segunda División game in his first season, which ended in relegation; he became a regular in the following years.

[3] He scored his first goal for the latter on 8 September, his 7th-minute penalty ousting SD Huesca from the Copa del Rey and helping to reach the fourth round after the 1–0 home win;[4] the following month, he netted in the last minute to help beat RC Celta de Vigo 3–2 also at the Estadio Nuevo José Zorrilla, exciting manager Antonio Gómez.

[11] In November 2015, Alonso joined a host of compatriots at Indian Super League franchise Atlético de Kolkata as a replacement for the injured Javi Lara.