Diskografi Demi Lovato
Singel > Sebagai penyanyi utama

| Judul | Tahun | Posisi chart> US  | Posisi chart> AUS  | Posisi chart> CAN  | Posisi chart> GER   | Posisi chart> IRE  | Posisi chart> ITA  | Posisi chart> NOR  | Posisi chart> NZ  | Posisi chart> SWI  | Posisi chart> UK  | Sertifikat | Album |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| "This Is Me"  (bersama Joe Jonas) | 2008 | 9 | 46 | 16 | 36 | 27 | 25 | 12 | — | 39 | 33 |  RIAA: Platinum  ARIA: Platinum  BPI: Silver | Camp Rock |  |
| "Get Back" | 2008 | 43 | 141 | 93 | — | — | — | — | — | — | — |  RIAA: Emas | Don't Forget |  |
| "La La Land" | 2008 | 52 | 76 | — | 82 | 30 | — | — | — | — | 35 |  RIAA: Platinum  ARIA: Emas | Don't Forget |  |
| "Don't Forget" | 2009 | 41 | — | 76 | — | — | 77 | — | — | — | 120 |  RIAA: Platinum | Don't Forget |  |
| "Here We Go Again" | 2009 | 15 | 129 | 61 | — | — | 96 | — | 38 | — | 199 |  RIAA: Platinum | Here We Go Again |  |
| "Remember December" | 2010 | — | — | — | — | — | — | — | — | — | 80 |  | Here We Go Again |  |
| "Wouldn't Change a Thing" (bersama Joe Jonas atau Stanfour) | 2010 | 110 | — | 90 | 28 | — | — | — | — | — | 71 |  RIAA: Emas | Camp Rock 2: The Final Jam |  |
| "Skyscraper" | 2011 | 10 | 45 | 18 | 78 | 15 | — | — | 9 | 67 | 7 |  RIAA: 3x Platinum  ARIA: 2x Platinum  BPI: Emas  RMNZ: Emas | Unbroken |  |
| "Give Your Heart a Break" | 2012 | 16 | — | 19 | — | — | — | — | 9 | — | 194 |  RIAA: 4× Platinum  ARIA: Platinum  BPI: Silver  RMNZ: Emas | Unbroken |  |
| "Heart Attack" | 2013 | 10 | 41 | 7 | — | 3 | 28 | 15 | 9 | 74 | 3 |  RIAA: 5× Platinum  ARIA: 3x Platinum  BPI: Platinum  BVMI: Emas  IRMA: Emas  MC: 2× Platinum  RMNZ: Platinum | Demi |  |
| "Made in the USA" | 2013 | 80 | — | — | — | 50 | 93 | — | — | — | 89 |  RIAA: Emas | Demi |  |
| "Let It Go" | 2013 | 38 | 25 | 31 | 65 | 34 | 15 | — | 13 | 60 | 42 |  RIAA: 2× Platinum  ARIA: 2x Platinum  BPI: Emas  BVMI: Emas  FIMI: Emas  IFPI NOR: Emas  MC: Platinum  RMNZ: Platinum | Frozen |  |
| "Neon Lights" | 2013 | 36 | — | 40 | — | 67 | — | — | 12 | — | 15 |  RIAA: 2× Platinum  ARIA: Emas  IFPI NOR: Platinum  RMNZ: Emas | Demi |  |
| "Really Don't Care" (featuring Cher Lloyd) | 2014 | 26 | 81 | 24 | — | 82 | — | — | 36 | — | 92 |  RIAA: 2× Platinum  ARIA: Platinum  BPI: Silver  IFPI NOR: Platinum | Demi |  |
| "Cool for the Summer" | 2015 | 11 | 20 | 14 | 33 | 18 | 52 | 31 | 9 | 53 | 7 |  RIAA: 4× Platinum  ARIA: 3x Platinum  BPI: Platinum  BVMI: Emas  FIMI: Emas  IFPI NOR: Platinum  MC: 3× Platinum  RMNZ: Emas | Confident |  |
| "Confident" | 2015 | 21 | 35 | 26 | — | 61 | — | — | 27 | — | 65 |  RIAA: 4× Platinum  ARIA: 3x Platinum  BPI: Platinum  MC: Platinum | Confident |  |
| "Stone Cold" | 2016 | 102 | — | 79 | — | — | — | — | — | — | — |  RIAA: Platinum  ARIA: Platinum  BPI: Silver  IFPI NOR: Emas | Confident |  |
| "Body Say" | 2016 | 84 | — | 59 | — | — | — | — | — | — | 188 |  RIAA: Emas  ARIA: Emas | — |  |
| "Sorry Not Sorry" | 2017 | 6 | 8 | 18 | 62 | 8 | 58 | 17 | 6 | 47 | 9 |  RIAA: 7× Platinum  ARIA: 6× Platinum  BPI: 2× Platinum  BVMI: Emas  FIMI: Platinum  IFPI NOR: 2× Platinum  MC: 3× Platinum  RMNZ: Platinum | Tell Me You Love Me |  |
| "Tell Me You Love Me" | 2017 | 53 | — | 32 | 91 | 92 | — | — | — | — | 85 |  RIAA: 2× Platinum  ARIA: Platinum  BPI: Silver  IFPI NOR: Emas  MC: Emas | Tell Me You Love Me |  |
| "Échame la Culpa" (bersama Luis Fonsi) | 2017 | 47 | 80 | 35 | 6 | 40 | 6 | 12 | — | 2 | 46 |  RIAA: 3× Platinum (Latin)  BPI: Silver  BVMI: Platinum  FIMI: 3× Platinum  IFPI NOR: 2× Platinum  MC: Platinum | Vida |  |
| "Sober" | 2018 | 47 | 50 | 48 | — | 34 | — | — | — | 61 | 63 |  RIAA: Emas  ARIA: Platinum  BPI: Silver | — |  |
| "Anyone" | 2020 | 34 | — | 64 | — | 71 | — | — | — | — | — |  RIAA: Emas | Dancing with the Devil... the Art of Starting Over |  |
| "I Love Me" | 2020 | 18 | 73 | 30 | 89 | 30 | — | — | — | 65 | 35 |  RIAA: Platinum  ARIA: Emas | Dancing with the Devil... the Art of Starting Over |  |
| "I'm Ready" (bersama Sam Smith) | 2020 | 36 | 25 | 30 | 66 | 13 | 70 | 31 | 28 | 35 | 20 |  RIAA: Emas  ARIA: Platinum  BPI: Silver  MC: Emas | Love Goes |  |
| "OK Not to Be OK" | 2020 | 36 | 47 | 41 | — | 43 | — | — | — | 51 | 42 |  | Dancing with the Devil... the Art of Starting Over |  |
| "Still Have Me" | 2020 | — | — | — | — | — | — | — | — | — | — |  | — |  |
| "Commander in Chief" | 2020 | — | — | — | — | — | — | — | — | — | — |  | — |  |
| "What Other People Say" (bersama Sam Fischer) | 2021 | 107 | 39 | 89 | — | 60 | — | — | 37 | — | 58 |  ARIA: Platinum | Dancing with the Devil... the Art of Starting Over |  |
| "Dancing with the Devil" | 2021 | 56 | — | 49 | — | 46 | — | — | — | — | 50 |  RIAA: Emas | Dancing with the Devil... the Art of Starting Over |  |
| "Met Him Last Night" (featuring Ariana Grande) | 2021 | 61 | 52 | 48 | — | 32 | — | 39 | — | 88 | 44 |  | Dancing with the Devil... the Art of Starting Over |  |
| "Skin of My Teeth" | 2022 | — | — | — | — | — | — | — | — | — | — |  | Holy Fvck |  |
| "Substance" | 2022 | — | — | — | — | — | — | — | — | — | — |  | Holy Fvck |  |
| "29" | 2022 | 96 | — | 95 | — | — | — | — | — | — | — |  | Holy Fvck |  |
| "Still Alive" | 2023 | — | — | — | — | — | — | — | — | — | — |  | — |  |
| "Swine" | 2023 | — | — | — | — | — | — | — | — | — | — |  | — |  |
| "Penhasco2" (bersama Luísa Sonza) | 2023 | — | — | — | — | — | — | — | — | — | — |  | Escândalo Íntimo |  |
| "Chula" (bersama Grupo Firme) | 2024 | — | — | — | — | — | — | — | — | — | — |  | — |  |
"—" menandakan lagu yang tidak masuk chart di wilayah tersebut.