The smallest ostrich living (height) is 127 cm tall (50 inches), achieved by Tom Thumb, an adult male African ostrich (South Africa) based at the Cape Town Ostrich ranch, Cape Town, South Africa, on 15 July 2011
Tom Thumb is fully grown and measures 57cm from ground to the patella when standing and 51cm from base of neck to base of head ie: length of neck. The average male ostrich is usually 1.8 – 2.7 meters / 6 – 9 feet tall, while female ostriches are 1.7 – 2 meters / 5.5 – 6.5 ft tall.