This is a list of the top-selling singles in New Zealand for 2020 from the Official New Zealand Music Chart's end-of-year chart, compiled by Recorded Music NZ.[1] Recorded Music NZ also published a 2020 list for the top 20 singles released by New Zealand artists.[2]
| Rank | Artist | Song | |
|---|---|---|---|
| 1 | L.A.B. | "In the Air" | |
| 2 | Jawsh 685 x Jason Derulo | "Savage Love (Laxed – Siren Beat)" | |
| 3 | Benee | "Glitter" | |
| 4 | Drax Project featuring Six60 | "Catching Feelings" | |
| 5 | Six60 | "Long Gone" | |
| 6 | Benee featuring Gus Dapperton | "Supalonely" | |
| 7 | L.A.B. | "Controller" | |
| 8 | Six60 | "The Greatest" | |
| 9 | Six60 | "Please Don't Go" | |
| 10 | Six60 | "Raining" | |
| 11 | Six60 | "Sundown" | |
| 12 | Six60 | "Never Enough" | |
| 13 | "Sunday Morning" | ||
| 14 | Benee | "Soaked" | |
| 15 | Drax Project featuring Hailee Steinfeld | "Woke Up Late" | |
| 16 | L.A.B. | "Rocketship" | |
| 17 | "Bigger" | ||
| 18 | Sons of Zion | "Road Trip" | |
| 19 | Six60 | "Closer" | |
| 20 | Sons of Zion | "Drift Away" |