|
|-
| 2001
| [[Anugerah Era 2001]]
| Lagu Etnik/Global Pilihan
| "Bakawali" (bersama [[Syura (penyanyi)|Syura]])
| {{nom}}
|-
| 2002
| [[Anugerah Industri Muzik ke-9]]
| Album Pop Etnik Terbaik
| ''[[Firus (album)|Firus]]'' (bersama Syura)
| {{nom}}
|-
| 2003
| [[Anugerah Bintang Popular Berita Harian ke-17|Anugerah Bintang Popular Berita Harian 2003]]
| Penyanyi Duo/Kumpulan Popular
| Dirinya sendiri (bersama [[Achik Spin]])
| {{nom}}
|-
| 2015
| ''[[Gegar Vaganza (musim 2)|Gegar Vaganza 2015]]''
| Terbuka
| Finalis
|-
| rowspan="3"|2016
| [[Anugerah Bintang Popular Berita Harian ke-29]]
| Artis Youtube Popular
| rowspan="4" | Dirinya sendiri
| {{won}}
|-
| rowspan=2|[[Anugerah MeleTOP Era 2017]]
| Penyanyi MeleTOP
| rowspan="3" | Dirinya sendiri
| {{nom}}
|-
| rowspan="2"|[[Anugerah Bintang Popular Berita Harian ke-30]]
| Penyanyi Wanita Popular
| {{won}}
|-
| rowspan="9"|2018
| [[ERA Digital Muzik Awards 2018]]
| Temubual Terbaik Carta Era 40
| {{nom}}
|-
| rowspan=3|[[Anugerah MeleTOP Era 2018]]
| Penyanyi MeleTOP
| {{nom}}
| {{nom}}
|-
| rowspan=4|[[Anugerah Bintang Popular Berita Harian ke-31]]<ref>{{cite news|url=https://www.bharian.com.my/hiburan/selebriti/2018/10/482843/bohong-jika-tak-takut-jatuh-semula-siti-nordiana|title=Bohong jika tak takut jatuh semula|author=Raja Nurfatimah Mawar Raja Mohamed|publisher=[[Berita Harian]]|date=7 Oktober 2018|accessdate=16 April 2019}}</ref>
| Penyanyi Wanita Popular
| {{nom}}
| {{nom}}
|-
| ''[[Mentor (musim 7)|Mentor 7]]''<ref>[https://mediahiburan.my/juara-gv2-menang-di-mentor-7-terkini-top-top-meletop-ame2019-level-siti-nordiana-sudah-lain-ini-reaksinya/ Juara GV2, menang di Mentor 7 dan terkini Top Top Meletop AME2019, 'level' Siti Nordiana sudah lain? Ini reaksinya] [[Media Hiburan]]. 22 April 2019. Dicapai pada 7 Disember 2019.</ref>
| rowspan="2" | Terbuka
| Finalis
|-
| rowspan="12"|2019
| [[Anugerah Juara Lagu ke-33]]
| Finalis (bersama [[Jaclyn Victor]])
| {{nom}}
| {{won}}
|-
| rowspan="3"|[[Anugerah MeleTOP Era 2019]]<ref>{{cite news|url=https://www.sinarharian.com.my/article/24683/HIBURAN/Siti-Nordiana-Khai-Bahar-menang-Anugerah-Top-Top-MeleTOP-AME2019|title=Siti Nordiana, Khai Bahar menang Anugerah Top Top MeleTOP Anugerah MeleTOP Era 2019|author=Zulqarnain Abu Hassan|publisher=[[Sinar Harian]]|date=22 April 2019|accessdate=24 November 2019}}</ref><ref>{{cite news|url=https://gempak.com/artikel/17452/khai-bahar-siti-nordiana-artis-top-top-meletop-2019-ini-senarai-keputusan-penuh-ame2019|title=Khai Bahar & Siti Nordiana Artis Top Top MeleTOP 2019! Ini senarai keputusan penuh AME2019|author=Syafiqah Jalal|publisher=[[Astro Gempak]]|date=21 April 2019|accessdate=24 November 2019}}</ref><ref>Nur Asyikin Mayudin (21 April 2019). [https://www.mstar.com.my/spotlight/hiburan/2019/04/21/khai-siti-nordiana-ame2019 Khai Bahar menang lagi, Siti Nordiana buat kejutan AME2019] [[mStar Online]]. Dicapai pada 7 Disember 2019.</ref>
| Penyanyi MeleTOP
| rowspan="7" | Dirinya sendiri
| {{won}}
|-
| rowspan="6"|[[Anugerah Bintang Popular Berita Harian ke-32]] (ABPBH32)<ref>{{cite news|url=https://www.hmetro.com.my/rap/2019/09/499363/aaron-sam-mahu-siti-nordiana-menang-abpbh32|title=Aaron, Sam mahu Siti Nordiana menang ABPBH32|author=Sudirman Mohd Tahir|publisher=[[Harian Metro]]|date=22 September 2019|accessdate=7 Januari 2020}}</ref><ref>{{cite news|url=https://www.hmetro.com.my/rap/2019/08/486678/banyak-pencalonan-nana-potensi-menang-besar|title=Banyak pencalonan, Nana potensi menang besar|author=Rudy Imran Shamsuddin|publisher=[[Harian Metro]]|date=16 Ogos 2019|accessdate=7 Januari 2020}}</ref>
| Penyanyi Wanita Popular
| {{won}}
|-
| rowspan="9" |2020
| rowspan="3" |[[Anugerah Bintang Popular Berita Harian ke-33]]
|Artis Kolaborasi/Duo/Berkumpulan Popular<ref>{{cite news|url=https://www.bharian.com.my/berita/nasional/2020/11/753988/khai-bahar-siti-nordiana-menang-artis-kolaborasiduoberkumpulan|title=Khai Bahar, Siti Nordiana menang Artis Kolaborasi/Duo Popular|publisher=[[Berita Harian]]|date=13 November 2020|accessdate=24 November 2020}}</ref>
|Dirinya sendiri (bersama [[Khai Bahar]])
|{{Won}}
|-
|{{Won}}
|-
| rowspan=6|[[Anugerah MeleTOP Era 2020]]<ref>{{cite news|url=https://www.mstar.com.my/spotlight/hiburan/2020/03/04/siti-nordiana-ame2020|title=Rupa-rupanya ini rahsia mengapa peminat sayang Siti Nordiana - "Saya cuma jadi diri sendiri dan jaga hati mereka|author=Qarami Hashim|publisher=[[mStar Online]]|date=4 Mac 2020|accessdate=2 April 2020}}</ref><ref>{{cite news|url=https://www.mstar.com.my/spotlight/hiburan/2020/03/03/top5-ame2020|title=Senarai penuh pencalonan AME2020, Mira Filzah dan Siti Nordiana 'sangkut' empat kategori|author=Qarami Hashim|publisher=[[mStar Online]]|date=3 Mac 2020|accessdate=3 Mac 2020}}</ref>
| Penyanyi Meletop
| {{nominated}}
|-
| Grup/Duo Meletop
| Dirinya sendiri (bersama [[Khai Bahar]])
| {{won}}
|-
|-
| TOP TOP MeleTOP Duo/Berkumpulan
| Dirinya sendiri (bersama [[Khai Bahar]])
| {{won}}
|-
| rowspan="4" | 2021
| rowspan="2" | [[Anugerah Bintang Popular Berita Harian ke-34]]<ref>{{cite news|url=https://www.bharian.com.my/hiburan/selebriti/2021/11/887086/siti-nordiana-rampas-semula-trofi-penyanyi|title=Siti Nordiana rampas semula trofi penyanyi|author=Farihad Shalla Mahmud|publisher=[[Berita Harian]]|date=13 November 2021|accessdate=15 November 2021}}</ref><ref>{{cite news|url=https://www.hmetro.com.my/utama/2021/11/778189/hasil-usaha-peminat|title=Hasil usaha peminat|author=Norhayati Nordin|publisher=[[Harian Metro]]|date=17 November 2021|accessdate=20 November 2021}}</ref>
| Penyanyi Wanita Popular
| rowspan="4" | Dirinya sendiri
| {{won}}
|-
| rowspan="2" | [[Anugerah MeleTOP Era 2021]]
| Penyanyi MeleTOP
| {{nom}}
| 