Isis Poon Lok Yan (Chinese: ???; Jyutping: pun1 lok6 jan1, born 22 August 1991) is a badminton player from Hong Kong.
She competed at the 2012 and 2016 Summer Olympics in women's doubles event.Together with Tse Ying Suet she has received her best competitive results in Women's Doubles.
Their breakout performance was at the 2011 India Super Series where they reached the semifinals.
They matched that result at the 2011 Japan Super Series and are currently in position to qualify for the 2012 London Olympics.
At 2012 Japan Super Series, she together with Tse Ying Suet won the champion of Women's Doubles by beating 4 Japan pairs consecutively.