Moh Siew Wei (simplified Chinese: 莫晓薇; traditional Chinese: 莫曉薇; pinyin: Mò Xiǎo Wēi; Jyutping: Mok6 Hiu2 Mei4; Pe̍h-ōe-jī: Bo̍k Hiáu-bî; Pha̍k-fa-sṳ: Mo̍k Hiáu-vì; ^[1] born 30 April 1978 in Ipoh) is a retired Malaysian athlete who specialised in the 100 metres hurdles.^[2] She won several medals at the regional level.

She has personal bests of 13.27 seconds in the 100 metres hurdles (Kassel 2004) and 8.38 seconds in the 60 metres hurdles (Karlsruhe 2005). Both are current national records.

She retired from competition in 2008^[3] and married a former pole vaulter, Teh Weng Chang, the same year.

Year	Competition	Venue	Position	Event	Notes
Representing  Malaysia
2000	Asian Championships	Jakarta, Indonesia	5th	100 m hurdles	13.80
2001	Southeast Asian Games	Kuala Lumpur, Malaysia	2nd	100 m hurdles	13.43
2002	Asian Championships	Colombo, Sri Lanka	4th	100 m hurdles	13.83
	Asian Games	Busan, South Korea	8th	100 m hurdles	13.81
2003	World Indoor Championships	Birmingham, United States	28th (h)	60 m hurdles	8.81
	Asian Championships	Manila, Philippines	5th	100 m hurdles	13.50
	Universiade	Daegu, South Korea	17th (h)	100 m hurdles	13.68
	Southeast Asian Games	Hanoi, Vietnam	3rd	100 m hurdles	13.78 (w)
2005	Asian Championships	Incheon, South Korea	6th	100 m hurdles	13.70
	Southeast Asian Games	Malate, Manila	1st	100 m hurdles	13.54
2006	Commonwealth Games	Melbourne, Australia	9th (h)	100 m hurdles	13.62
2007	Asian Championships	Amman, Jordan	4th	100 m hurdles	13.68
	Southeast Asian Games	Nakhon Ratchasima, Thailand	2nd	100 m hurdles	13.61