Lobak is a state constituency in Negeri Sembilan, Malaysia, that has been represented in the Negeri Sembilan State Legislative Assembly.[1] 
The state constituency was first contested in 1995 and is mandated to return a single Assemblyman to the Negeri Sembilan State Legislative Assembly under the first-past-the-post voting system. 
  Demographics
   Ethnic breakdown of Lobak's electorate as of 2023
[2] - Chinese (72.1%)
- Indian (21.5%)
- Malay (4.27%)
- Other ethnicities (2.11%)
 History
 Polling Districts
 According to the Gazette issued on 30 March 2018, the Lobak constituency has a total of 6 polling districts.[3] 
   | State Constituency | Polling District | Code | Location | 
  | Lobak (N11) | Kg Lobak | 128/11/01 | SJK (C) Pei Hua | 
  | Ulu Temiang | 128/11/02 | SJK (C) Chi Hwa | 
  | Jalan Manickavasagam | 128/11/03 | SJK (T) Lobak | 
  | Lobak | 128/11/04 | SJK (C) Chung Hua | 
  | Taman Templer | 128/11/05 | SJK (C) Chan Wa | 
  | Kampong Nee Yan | 128/11/06 | SJK (C) Kuo Min | 
 Representation History
   | Members of Assembly for Lobak | 
  | Assembly | Years | Name | Party | 
  | Constituency created from Sungai Ujong | 
  | 9th | 1995-1999 | Khoo Seng Hock | DAP | 
  | 10th | 1999-2004 | BN (MCA) | 
  | 11th | 2004-2008 | Anthony Loke Siew Fook (陆兆福)
 | DAP | 
  | 12th | 2008-2013 | PR (DAP) | 
  | 13th | 2013-2018 | Siow Kim Leong | 
  | 14th | 2018-2023 | Chew Seh Yong (周世扬)
 | PH (DAP) | 
  | 15th | 2023–present | 
 Election results
       Negeri Sembilan state election, 2004    | Party | Candidate | Votes | % | ∆% | 
  |  | DAP | Loke Siew Fook | 5,991 | 59.08 |  13.80 | 
  |  | BN | Khoo Seng Hock | 4,149 | 40.98 |  11.15 | 
  | Total valid votes | 10,140 | 100.00 | 
  | Total rejected ballots | 180 | 
  | Unreturned ballots | 18 | 
  | Turnout | 10,338 | 70.87 |  0.45 | 
  | Registered electors | 14,588 | 
  | Majority | 1,842 | 18.10 |  11.25 | 
  |  | DAP gain from BN | Swing | ? | 
  |  | 
   Negeri Sembilan state election, 1999    | Party | Candidate | Votes | % | ∆% | 
  |  | BN | Khoo Seng Hock | 5,983 | 52.13 |  4.62 | 
  |  | DAP | Wong Zee Nyok | 5,196 | 45.28 |  7.21 | 
  |  | MDP | Wong Bee Kar | 297 | 2.59 |  2.59 | 
  | Total valid votes | 11,476 | 100.00 | 
  | Total rejected ballots | 242 | 
  | Unreturned ballots | 168 | 
  | Turnout | 11,886 | 70.42 |  2.63 | 
  | Registered electors | 16,879 | 
  | Majority | 787 | 6.85 |  1.87 | 
  |  | BN gain from DAP | Swing | ? | 
  |  | 
   Negeri Sembilan state election, 1995    | Party | Candidate | Votes | % | ∆% | 
  |  | DAP | Khoo Seng Hock | 6,127 | 52.49 | 
  |  | BN | Wong Bee Kar | 5,545 | 47.51 | 
  | Total valid votes | 11,672 | 93.71 | 
  | Total rejected ballots | 267 | 
  | Unreturned ballots | 516 | 
  | Turnout | 12,455 | 73.05 | 
  | Registered electors | 17,051 | 
  | Majority | 582 | 4.98 | 
  | This is a new created constituency | 
  |  | 
 References
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| | Perlis State Legislative Assembly | 
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| | Kedah State Legislative Assembly | 
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| | Kelantan State Legislative Assembly | 
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| | Terengganu State Legislative Assembly | 
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| | Penang State Legislative Assembly | 
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| | Perak State Legislative Assembly | 
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| | Pahang State Legislative Assembly | 
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| | Selangor State Legislative Assembly | 
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| | Negeri Sembilan State Legislative Assembly | 
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| | Malacca State Legislative Assembly | 
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| | Johor State Legislative Assembly | 
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| | Sabah State Legislative Assembly | 
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| | Sarawak State Legislative Assembly | 
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