Imanol Alguacil Barrenetxea, known simply as Imanol as a player, is a Spanish retired footballer who played as a right back, currently manager of Real Sociedad.
Born in Orio, Gipuzkoa, Basque Country, Imanol was a Real Sociedad youth graduate. He made his senior debut with the reserves, spending two full seasons in Segunda División B.
Imanol scored his first professional goal on 20 September 1992, netting his side's first in a 2–1 away win over Albacete Balompié.
He was used rarely in the final years of his stint at the Anoeta Stadium as he dealt with several injury problems, leaving the club in 1998 after playing only four matches during the season.
In the 1998 off-season, Imanol joined Villarreal CF also of the top division, appearing sparingly in his first year and suffering relegation. After returning to the top flight in 2000 he was released, and moved to Segunda División's Real Jaén.
Imanol then resumed his career in the third tier, representing FC Cartagena and Burgos CF. He retired with the latter side in 2003, aged 32.
Alguacil returned to his first club Real Sociedad on 26 July 2011, , being appointed manager of the youth setup. He was named reserve team coach Asier Santana's assistant in 2013, and was also in charge of the main squad along with Santana in November 2014 after Jagoba Arrasate's dismissal.
After the arrival of David Moyes in November 2014, Alguacil was included in the first team staff, but he was appointed manager of the B side late in that month. He replaced the fired Eusebio Sacristán at the helm of the main squad until the end of the season.
Alguacil returned to the reserves and Asier Garitano took over the senior role in the summer of 2018, but in December of the same year the latter was dismissed following a poor sequence of results and the former again became the first team coach.
Following a strong start to the 2019–20 campaign, he was given a one-year contract extension.
Alguacil led Real to their first trophy since 1987 on 3 April 2021, with a 1–0 victory against Basque rivals Athletic Bilbao in the 2020 Copa del Rey Final (postponed due to the COVID-19 pandemic).