Hougang Single Member Constituency (Hougang SMC) (Traditional Chinese: 後港單選區;Simplified Chinese: 后港单选区) is a Single Member Constituency whose borders roughly enclose the town of Hougang, located in the north-eastern area of Singapore. The boundary includes a portion of Hougang and is an opposition held seat with its Member of Parliament the Workers' Party's Low Thia Khiang. The constituency was formed in 1988 and was held by the People's Action Party (PAP) until the 1991 general election, when the ruling party lost the seat to the Workers' Party. The seat is one of the two opposition seats of the Parliament of Singapore in the country. Despite Singapore's current dominant-party system, Hougang SMC has been difficult to recapture by the PAP since losing the constituency in 1991.

Members of Parliament

• Tang Guang Seng (1988 – 1991)
• Low Thia Khiang (1991 – )

Candidates and results

Election	Seats	Voters	Party	Candidate(s)	Votes	Votes %
Hougang Single Member Constituency
Singapore general election, 1988	1	21,703	PAP	Tang Guan Seng	11,983	59.0
			WP	Lim Chiu Liang	8,342	41.0
Singapore general election, 1991	1	21,476	PAP	Tang Guan Seng	9,487	47.2
			WP	Low Thia Khiang	10,621	52.8
Singapore general election, 1997	1	24,423	PAP	Heng Chee How	9,736	42.0
			WP	Low Thia Khiang	13,458	58.0
Singapore general election, 2001	1	23,320	PAP	Eric Low Siak Meng	9,882	45.0
			WP	Low Thia Khiang	12,070	55.0
Singapore general election, 2006	1	23,741	PAP	Eric Low Siak Meng	8,308	37.26
			WP	Low Thia Khiang	13,989	62.74