Hayden Ng (Chinese: 吳海登; pinyin: Wú Hǎidēng; born 20 January 1966) is a Singapore based Fashion designer.

After his secondary school education, Ng started his fashion career.

In 1987, while doing his national service, Ng dressed Marion Nicole Teo for her contest for Miss Singapore Universe.

From 2001 to 2003, Ng was the Chief Costume Designer for Singapore's National Day Parade.

In 2015, Ng wrote an article entitled Uniform which is collected in the Singapore Armed Forces' SAF50 Commemorative Book, Giving Strength to Our Nation: The SAF and Its People.