Cheng Yuk Han Bjork (Chinese: 鄭玉嫻; Jyutping: zeng6 juk6 haan4; born 21 June 1980) is a fencer from Hong Kong, China who won three bronze medals in the women's épée team competition at the 2002 Busan Asian Games, 2006 Asian Games and 2010 Asian Games.

Bjork Cheng
Medal record
Women's Epée
Representing  Hong Kong
Asian Games
Bronze medal – third place 2006 Doha Team
Bronze medal – third place 2010 Guangzhou Team
Bronze medal – third place 2014 Incheon Team
Asian Championships
Bronze medal – third place 2003 Chiang Mai Team
Bronze medal – third place 2004 Manila Team
Bronze medal – third place 2005 Kota Kinabalu Team
Bronze medal – third place 2007 Nantong Team
Bronze medal – third place 2008 Bangkok Team
Bronze medal – third place 2009 Doha Team
Bronze medal – third place 2010 Seoul Team
Bronze medal – third place 2011 Seoul Team
Bronze medal – third place 2012 Wakayama Team
Bronze medal – third place 2013 Shanghai Team

She attended Kit Sam Secondary School and is a physiotherapy graduate from the Hong Kong Polytechnic University.

Hong Kong Elite Athlete Association http://hk.myblog.yahoo.com/hkeaa_chengyukhan