Juan Carlos Mandiá Lorenzo (born 17 January 1967) is a Spanish retired footballer who played as a defender, currently assistant manager of Saudi Pro League club Al Qadsiah.
Mandiá started a coaching career two years after retiring, achieving promotion from the Segunda División B with Hércules CF in 2005.
[5][6] In the 2006–07 season of Segunda División, he served as assistant to Míchel at Real Madrid Castilla,[7][8] as they eventually dropped down a level.
[11] Mandiá returned to active in late September 2010, replacing fired Gonzalo Arconada at CD Tenerife (five games, five losses).
[16] On 10 February 2015 he was hired at CE Sabadell FC for the rest of the season,[17] and left on 10 June once the Catalans were relegated to the third tier.