Saidali Iuldachev (born 20 January 1968) is an Uzbekistani chess player who holds the title of Grandmaster. He was awarded the title by FIDE in 1993. He has won the Uzbekistani Chess Championship five times (1987, 1988, 1995, 1999, and 2008) and participated in Chess Olympiads, representing Uzbekistan eleven times, first in 1992 and last in 2010.
Iuldachev has also made notable performances in various tournaments, including the Hoogovens Open at Wijk aan Zee in the Netherlands (1995), the Arco Open in Italy (2005), and the Moscow Open (2007). In 2005, he was awarded second place at the Asian Chess Championship in Hyderabad.
Iuldachev was also one of the trainers of the Indian Chess player Parimarjan Negi, who became a Grandmaster in 2006. His performance at the 2010 Olympiad wasn't as successful, with Iuldachev only scoring half of his points.