Glasgow Zoo, or Calderpark Zoo, was a 99-acre (40 ha) zoological park in Baillieston, Glasgow, Scotland. The zoo was established in 1947 by the Zoological Society of Glasgow and West of Scotland, which was itself established in 1936. The zoo was located on the lands of the former Calderpark Estate, and during its peak attracted about 140,000 visitors a year. At the zoo's peak it contained over 600 animals and had 24 full-time and many part-time or seasonal staff.