The present study was carried out to examine the effects of calf sex, parity order and season of calving on birth and weaning weight of Friesian crossbred calves comprising weight records of animals born from 2002 to 2011. The data were arranged by dams’ parity order (1^st, 2^nd, 3^rd, 4^th, 5^th, 6^th and 7^th) calving seasons (dry summer, wet summer and winter season) and calf sex. The overall mean calf birth and weaning weights were 33.7±5.1 kg and 82.9±6.4 kg, respectively. Male calves were superior to females in birth and weaning weights. The lightest birth weight was recorded for the calves born in first parity. The calf birth weight increased with increasing parity order. The heaviest birth weight of calves was observed to dam at 5^th parity after which no variation was observed among calves. The lightest weaning weight was recorded for the calves born to first parity dams. There was no variation in weaning weight for calves born to dams from 2^nd to 7^th parity order. Calves born during dry summer had the lighter birth and weaning weights than their fellow mates born during wet summer and winter. It can be concluded that the studied factors significantly affected birth and weaning weights of Friesian crossed calves. Since the potential for such crosses to be used as conventional dairy animals in the tropics is high, it is highly advised to pay high attention to nutrition and management during gestation and pre-weaning periods.