6 selections by the New York Islanders in the 2021 NHL Entry Draft.
| Year | Pick | Round | Team | Player | Pos | Amateur Club | League | Country |
|---|---|---|---|---|---|---|---|---|
| 2021 | 52 | 2 | New York Islanders | Aatu Raty | C | Karpat | FINLAND | FIN |
| 2021 | 93 | 3 | New York Islanders | Tristan Lennox | G | Saginaw | OHL | CAN |
| 2021 | 125 | 4 | New York Islanders | Cameron Berg | C | Muskegon | USHL | USA |
| 2021 | 157 | 5 | New York Islanders | Eetu Liukas | LW | TPS | FINLAND | FIN |
| 2021 | 189 | 6 | New York Islanders | Aleksi Malinen | D | Jyp | FINLAND | FIN |
| 2021 | 221 | 7 | New York Islanders | Tomas Machu | D | Sumperk | CZREP-2 | CZE |