Iván Cuéllar Sacristán (born 27 May 1984), nicknamed Pichu, is a Spanish professional footballer who plays for CD Leganés as a goalkeeper.
Formed at Atlético Madrid, he spent most of his career with Sporting de Gijón, where he made 211 total appearances.
Cuéllar was born in Mérida, Extremadura, and spent time at Real Madrid before continuing his development at hometown club Mérida UD, where he made his senior debut aged 17 in a 0–1 loss away to Granada CF in Segunda División B. After completing his formation at Atlético Madrid, he made his first appearance for the first team in the last matchday of the 2004–05 season, in a 2–2 draw against neighbours Getafe CF.
In 2006–07, benefitting from the forced absence of first-choice Leo Franco, Cuéllar played in a further seven games, including a 0–6 home defeat to FC Barcelona on 20 May 2007.
After a season-long loan at second division club SD Eibar, featuring in all the matches save four, Cuéllar was released by Atlético (as another youth graduate in the same position, Ismael Falcón) and joined Sporting de Gijón in August 2008, on a four-year contract. After Sergio Sánchez conceded 19 goals in the season's first four games he became the starter but, after a collision with Athletic Bilbao's Carlos Gurpegui during a 0–3 away loss on 14 December, suffered a serious ankle injury which rendered him unavailable for four months.
In mid-November 2009, as he was second-choice to Juan Pablo, Cuéllar suffered another severe injury, damaging his knee in training and being lost for the vast majority of the campaign. His first appearance after recovering would take place on 22 September 2010, as manager Manuel Preciado rested the vast majority of the starters for a Wednesday match at Barcelona – in a week where all the teams played three matches – which ended in a 0–1 loss.
In January 2013, after the departure of Juan Pablo to Maccabi Tel Aviv FC, Cuéllar was appointed as first-choice. He won the Ricardo Zamora Trophy for best goalkeeper in the 2014–15 Segunda División, conceding 21 goals in 36 games as the Asturians returned to La Liga; at the end of the season, he extended his contract until 2018.
Cuéllar ended his nine-year association with the El Molinón-based team in July 2017, and the 33-year-old signed for CD Leganés also in the top level. As Jon Ander Serantes was nursing a serious injury, he took the number one position and went on to record a club and personal best clean sheet of over 500 minutes that was broken by Sevilla FC in October.