|Full name||Iñigo Vélez de Mendizábal Fernández de Garaialde|
|Date of birth||15 March 1982|
|Place of birth||Vitoria, Spain|
|Height||1.93 m (6 ft 4 in)|
|2000–2002||→ Aurrerá (loan)||51||(15)|
|* Senior club appearances and goals counted for the domestic league only.
Born in Vitoria-Gasteiz, Álava, Vélez began his career in the lower leagues, playing for local CD Aurrerá de Vitoria and RCD Espanyol's B-team. In the 2004 summer he signed for SD Eibar in the second division, scoring four goals in 40 games in his second season as they were eventually relegated.
In 2007–08, Íñigo competed in La Liga with Real Murcia, in another relegation-ending campaign. He made his debut in the competition as a late substitute in a 0–2 away loss against Villarreal CF on 23 September 2007, netting two months later in a 1–1 draw at RCD Mallorca.
The following season, Vélez joined Athletic Bilbao, but took almost no part whatsoever in the Basque side's campaign (only four league matches). In late July 2009 his contract was mutually terminated, and he joined relegated CD Numancia on a three-year deal, with the former club being able to re-buy in 2010 or 2011 – Athletic teammate Joseba Garmendia also made the move.
Iñigo continued playing in the second level in 2011–12, penning a two-year contract with Xerez CD. After suffering relegation in 2013, and following an unsuccessful trial with CD Guadalajara, he decided to retire due to recurrent injury problems.
- Villarreal 2–0 Murcia; ESPN Soccernet, 23 September 2007
- Spain 2007/08; at RSSSF
- Joseba Garmendia ficha por el Numancia (Joseba Garmendia signs for Numancia); Diario AS, 24 July 2009 (Spanish)
- Íñigo Vélez, experiencia y gol para el ataque xerecista (Íñigo Vélez, experience and goal to xerecista attack); Xerez CD, 8 July 2011 (Spanish)
- Entrevista a Iñigo Vélez de Mendizábal (Interview to Iñigo Vélez de Mendizábal); Álava en tu Fútbol, 5 March 2014 (Spanish)