Hoon Thien How (born 24 December 1986) is a Malaysian former badminton player who played in the men's doubles category.

Hoon and Ong participated in the 2008 Indonesia Open and reached the semi-finals before being beaten by Candra Wijaya and Tony Gunawan, 25–23, 15–21, 15–21.

In May 2014, Hoon represented Malaysia at 2014 Thomas Cup with former partner, Tan Boon Heong as a scratch pair.

After 8 years since they last played together as official partners, Hoon's partnership with Tan Boon Heong was permanently resumed in September 2014.

This was due to the resignation of Boon Heong's partner, Koo Kien Keat earlier that year along with Tan Wee Kiong's new partnership with Goh V Shem.