Elections to the Ninth Odisha Legislative Assembly were held in 1985.

Constituencies The elections were held for 145 instead of 147 constituencies as a result of some candidates death contesting in Kakatpur and Keonjhar constituency. Out of 147 seats, 22 were reserved for Scheduled Castes, 33 for Scheduled Tribes and 92 for unreserved seats.

Contesting parties There are seven national parties CPI, INC, BJP, JNP, CPM, ICS and LKD, One state party ICJ three registered unrecognised party Jharkhand Party, JMM and SUC and some Independent Politicians took part in this assembly election. Indian National Congress emerged as the winner by winning 117 seats. Janaki Ballabh Patnaik become the Chief Minister of Odisha and was replaced by Hemananda Biswal for the last few months of this assembly tenure. Biju Patnaik become the Leader of Opposition in the 9th Orissa Assembly.

Results +Source: Election Commission of IndiaPartyPopular voteSeatsColorFlagNameSymbolVotes%±ppContestedWon+/−Indian National Congress 4,007,25851.08 3.3147117 1Janata Party 2,401,56630.61 26.4714021 18Communist Party of India 259,5083.31 1.78271 3Bharatiya Janata Party204,346 2.60 1.24671 1 -Independents - 823,85010.50 1.383747Total-100--147-Valid Votes 7,845,05051.15Invalid Votes171,533 -Total Votes polled / turnout8,016,58352.57Abstentation7,320,617 -Total No. of Electors 15,337,200

Elected members DistrictAC. No.ConstituencyMemberPartyMayurbhanj1Karanjia (ST) Karunakar Naik 2Jashipur (ST) Sambhunath Naik 3Bahalda (ST) Bhagey Gobardhan 4Rairangpur (ST) Bhabendra Nath Majhi 5Bangriposi (ST) Kangoi Singh 6Kuliana (ST) Saraswati Hembram 7Baripada Prasanna Kumar Dash 8Baisinga (ST) Pruthunath Kisku 9Khunta (ST) Biram Murmu 10Udala (ST) Ramaneswar Madhei Baleshwar11Bhograi Umarani Patra 12Jaleswar Judisthir Jena 13Basta Bhupal Chandra Mahapatra 14Balasore Gopanarayan Das 15Soro Jadunath Das Mohapatra 16Simulia Padma Lochan Panda 17Nilgiri Sukumar Nayak 18Bhandaripokhari (SC) Panchanan Mandal 19Bhadrak Jugal Kishore Pattanayak 20Dhamnagar Jagannath Rout 21Chandbali (SC) Netrananda Malik 22Basudevpur Madhu Sadan Panigrahi Cuttack23Sukinda Sarata Rout 24Korai Ramachandra Khuntia 25Jajpur (SC) Jagannath Mallick 26Dharamsala Kangali Charan Panda 27Barchana Sitakanta Mahapatra 28Bari-Derabisi Srikant Kumar Jena 29Binjharpur (SC) Nabakishore Mallick 30Aul Olagobinda Nayak 31Patamundai (SC) Ganeswar Behera 32Rajnagar Nalinikanta Mohanty 33Kendrapara Bhagabat Prasad Mohanty 34Patkura Bijoy Mohapatra 35Tirtol Nityananda Samntaray 36Ersama Krushna Chandra Swain 37Balikuda Jyotish Chandra Das 38Jagatsinghpur (SC) Kailash Chandra Mallik 39Kissannagar Batakrishna Jena 40Mahanga S. K. Matlub Ali 41Salepur (SC) Mayadhar Sethi 42Gobindpur Trilochan Kanungo 43Cuttack Sadar Dola Gobind Pradhan 44Cuttack City Sayad Mustafiz Ahemad 45Choudwar Rasananda Sahu 46Banki Akshaya Kumar Pattanaik 47Athgarh Janaki Ballabh Patnaik 48Baramba Lalit Mohan Mohanty Puri49Balipatna (SC) Raghab Chandra Seth 50Bhubaneswar Biju Patnaik 51Jatni Suresh Kumar Routray 52Pipli Pradeep Maharathy 53Nimapara (SC) Rabindra Kumar Sethy 54Kakatpur Surendra Nath Naik 55Satyabadi Rabindra Kumar Das 56Puri Braja Kishore Tripathy 57Brahmagiri Gangadhar Mohapatra 58Chilka Debendranath Manasingh 59Khurda Janaki Ballabh Patnaik 60Begunia Kailash Chandra Mohapatra 61Ranpur Ramakanta Mishra 62Nayagarh Bhagabat Behera 63Khandapara Bibhuti Bhusan Singh Mardaraj 64Daspalla Harihar Karan Ganjam65Jaganathprasad (SC) Damburudhar Sethi 66Bhanjanagar Umakanta Misra 67Suruda Sarat Chandra Panda 68Aska Raghaba Parida 69Kabisuryanagar Radha Govinda Sahu 70Kodala Ram Krushna Patnaik 71Khallikote V. Sugnana Kumari Deo 72Chatrapur Ashok Kumar Choudhury 73Hinjili Udayanath Nayak 74Gopalpur (SC) Ghana Syama Behere 75Berhampur Sibasankar Sahani 76Chikiti Chintamani Dyan Samantara 77Mohana Sarat Kumar Jena 78Ramagiri (ST) Haladhar Karji 79Parlakhemundi Trinath Sahu Koraput80Gunupur (ST) Bhagirathi Gomango 81Bissam-cuttack (ST) Dambaru Dhar Ulaka 82Rayagada (ST) Ulaka Rama Chandra 83Lakshmipur (ST) Anantaram Majhi 84Pottangi (ST) Chandrama Santha 85Koraput Nrushimananda Brahma 86Malkangiri (SC) Nadiabasi Biswas 87Chitrakonda (ST) Gangadhar Madi 88Kotpad (ST) Basudev Majhi 89Jeypore Gupta Prasad Das 90Nowrangpur Habibulla Khan 91Kodinga (ST) Bhogabati Pujari 92Dabugam (ST) Domburu Majhi 93Umarkote (ST) Parama Pujari Kalahandi94Nawapara Ghasi Ram Majhi 95Khariar Anup Singh Deo 96Dharamgarh (SC) Jugaram Behera 97Koksara Rahas Bihari Behera 98Junagarh Bikram Keshari Deo 99Bhawanipatna (SC) Bhakta Charan Das 100Narla (ST) Kumarmani Sabar 101Kesinga Bhupinder Singh Phulabani102Balliguda (ST) Laxmikanta Mallik 103Udayagiri (ST) Nagarjuna Pradhan 104Phulbani (SC) Abhimanyu Behera 105Boudh Sujit Kumar Padhi Balangir106Titilagarh (SC) Purna Chandra Mahananda 107Kantabanji Chaitanya Pradhan 108Patnagarh Sushil Kumar Prushty 109Saintala Radha Kanta Panda 110Loisingha Balgopal Mishra 111Bolangir Mahammad Mujafar Hussain Khan 112Sonepur (SC) Achyuta Biswal 113Binka Chitaranjan Mishra 114Birmaharajpur Kartika Prasad Taria Dhenkanal115Athmallik Amarnath Pradhan 116Angul Prafulla Misra 117Hindol (SC) Rabinarayan Naik 118Dhenkanal Nandini Satpathy 119Gondia Prafulla Kumar Bhanja 120Kamakhyanagar Prasan Pattanayak 121Pallahara Bibhudhendra Pratap Das 122Talcher (SC) Bhajaman Behara Sambalpur123Padampur Satyabhusan Sahu 124Melchhamunda Prakashchandra Debta 125Bijepur Nikunja Bihari Singh 126Bhatli (SC) Mohan Nag 127Bargarh Jadummani Pradhan 128Sambalpur Shraddhakar Supakar 129Brajarajnagar Prasannakumar Panda 130Jharsuguda Birendra Pandey 131Laikera (ST) Hemananda Biswal 132Kuchinda (ST) Jagateshwar Mirdha 133Rairakhol (SC) Abhimanyu Kumar 134Deogarh Raj Kishore Pradhan Sundergarh135Sundargarh Bharatendra Sekher Deo 136Talsara (ST)Gajadhar Majhi 137Rajgangpur (ST) Mangala Kisan 138Biramitrapur (ST) Remish Kerketta 139Rourkela Dilip Ray 140Raghunathpali (ST) Frida Topno 141Bonai (ST) Basanta Kumar Singh Dandpat Keonjhar142Champua (ST) Dhanurjay Laguri 143Patna Hrushikesh Naik 144Keonjhar (ST) Chhotaray Majhi 145Telkoi (ST) Pranaballav Naik 146Ramchandrapur Niranjan Patnaik 147Anandapur (SC) Jayadev Jena

References