Nainital–Udhamsingh Nagar Lok Sabha constituency is one of the five Lok Sabha (parliamentary) constituencies in Uttarakhand. It comprises two districts namely Nainital (part) and Udham Singh Nagar. This constituency came into existence in 2009, following the delimitation of Lok Sabha constituencies.

Nainital–Udhamsingh Nagar Lok Sabha constituency comprises the following fourteen Vidhan Sabha (legislative assembly) constituency segments:

#	Name	District	Member	Party		Leading (in 2024)
56	Lalkuan	Nainital	Dr. Mohan Singh Bisht		BJP		BJP
57	Bhimtal		Ram Singh Kaira		BJP		BJP
58	Nainital (SC)		Sarita Arya		BJP		BJP
59	Haldwani		Sumit Hridayesh		INC		BJP
60	Kaladhungi		Banshidhar Bhagat		BJP		BJP
62	Jaspur	Udham Singh Nagar	Adesh Singh Chauhan		INC		INC
63	Kashipur		Trilok Singh Cheema		BJP		BJP
64	Bajpur (SC)		Yashpal Arya		INC		BJP
65	Gadarpur		Arvind Pandey		BJP		BJP
66	Rudrapur		Shiv Arora		BJP		BJP
67	Kichha		Tilak Raj Behar		INC		BJP
68	Sitarganj		Saurabh Bahuguna		BJP		BJP
69	Nanakmatta (ST)		Gopal Singh Rana		INC		BJP
70	Khatima		Bhuwan Chandra Kapri		INC		BJP

Year	Member	Party
Till 2009 : Constituency did not exist
2009	Karan Chand Singh Baba		Indian National Congress
2014	Bhagat Singh Koshyari		Bharatiya Janata Party
2019	Ajay Bhatt
2024

2024 Indian general election: Nainital

Party		Candidate	Votes	%	±%
	BJP	Ajay Bhatt	772,671	61.03	0.32
	INC	Prakash Joshi	4,38,123	34.61	0.20
	BSP	Akhtar Ali	23,455	1.85	0.41
	NOTA	None of the above	10,425	0.82	0.02
Majority			3,34,458	26.42	0.52
Turnout			12,59,180	62.47	6.75
	BJP hold		Swing

2019 Indian general elections: Nainital-Udhamsingh Nagar

Party		Candidate	Votes	%	±%
	BJP	Ajay Bhatt	772,195	61.35	3.54
	INC	Harish Rawat	4,33,099	34.41	2.45
	BSP	Navneet Agrawal	28,455	2.26	3.12
	CPI(ML)	Kailash Pandey	5,488	0.44	New
	NOTA	None of the above	10,608	0.84	0.1
Margin of victory			3,39,096	26.94	1.09
Turnout			12,58,570	69.22	0.84
	BJP hold		Swing

2014 Indian general elections: Nainital-Udhamsingh Nagar

Party		Candidate	Votes	%	±%
	BJP	Bhagat Singh Koshyari	636,769	57.81	26.9
	INC	K. C. Singh Baba	3,52,052	31.96	10.68
	BSP	Laik Ahmed	59,245	5.38	13.65
	AAP	Balli Singh Cheema	13,472	1.22	New
	NOTA	None of the above	10,328	0.94	0.94
Margin of victory			2,84,717	25.85	14.12
Turnout			11,01,435	68.38
	BJP gain from INC		Swing	21.56

2009 Indian general elections: Nainital-Udhamsingh Nagar

Party		Candidate	Votes	%	±%
	INC	K. C. Singh Baba	321,377	42.63
	BJP	Bachi Singh Rawat	2,32,965	30.90
	BSP	Narayan Pal	1,43,515	19.03
Margin of victory			88,412	11.73
Turnout			7,53,682	58.69
	INC win (new seat)

• Nainital (Lok Sabha constituency)
• List of constituencies of the Lok Sabha
• List of parliamentary constituencies in Uttarakhand

• Nainital Udhamsingh Nagar lok sabha constituency election 2019 date and schedule

29°12′N 79°31′E / 29.2°N 79.52°E / 29.2; 79.52