Thecla Maria Catharina "Thea" Limbach (born 27 February 1959) is a retired speed skater from the Netherlands.
She competed at the 1984 Winter Olympics in the 500, 1000, 1500 and 3000 m and finished in 27th, 21st, 9th and 13th place, respectively.
She finished third in the KNSB Dutch Allround Championships in 1982, 1984 and 1985; in 1983 she was third in the KNSB Dutch Sprint Championships.Personal bests:
500 m – 42.6 (1983)
1000 m – 1:24.12 (1985)
1500 m – 2:09.59 (1986)
3000 m – 4:33.96 (1985)
5000 m – 7:59.68 (1985)In the 2000s she became Chef de Mission of the Dutch teams at the European Youth Olympic Festival and Paralympic Games (2004 and 2008).