Lubomír Buchta (born 16 May 1967 in Nové Mesto na Morave) was a Czech cross country skier who competed from 1989 to 1999.
Competing in three Winter Olympics, his best finish was seventh in the 4 x 10 km relay at Albertville in 1992 while his best individual finish was 13th twice (30 km: 1992, 50 km: 1998).
Buchta's best finish at the FIS Nordic World Ski Championships was fifth in the 10 km event at Val di Fiemme in 1991.
His best World Cup finish was third in a 50 km event in Norway in 1992.
Buchta earned four FIS race victories up to 15 km from 1994 to 1997.