Terry Pratchett is a 75-year-old . We trawled the web to determine that Terry Pratchett's height is 5ft 7 (170.2 cm). This makes him 2.1 inches shorter than the average male in the United States. Are you looking for more information about Terry Pratchett and his career? We found resources at britishcouncil.org, org.uk, imdb.com, iblist.com & co.uk.