Deutsch 
| Position | Stürmer |
| Nationalität |  |
| Geburtsort | Witten, GER |
| Größe | 193 cm |
| Gewicht | 89 kg |
| Geburtsdatum | 10.03.2004 |
| Jugendmannschaft | Iserlohner EC |
| Schläger | Rechts |
| Season | Team | League | GP | G | A | TP | PIM | Playoffs | GP | G | A | TP | PIM | |
| 2015-2016 | Slovakia Selects U12 | WSI U12 | 6 | 1 | 0 | 1 | 0 | | | ||||||
| 2016-2017 | Slovakia Selects U13 | WSI U13 | 7 | 2 | 2 | 4 | 10 | | | ||||||
| 2017-2018 | Kölner EC U16 | Schüler-BL | 9 | 1 | 4 | 5 | 0 | | | Playoffs | 0 | 0 | 0 | 0 | 0 |
| 2018-2019 | RB Hockey Academy U16 | RBHRC U16 | - | - | - | - | - | | | ||||||
| 2019-2020 | RB Hockey Academy U18 | ICEJL | 30 | 5 | 14 | 19 | 8 | | | Playoffs | 3 | 0 | 0 | 0 | 0 |
| Germany U16 (all) | International-Jr | 3 | 2 | 1 | 3 | 4 | | | |||||||
| 2020-2021 | EC Salzburg U20 | ICEYSL | 12 | 1 | 9 | 10 | 0 | | | ||||||
| RB Hockey Academy U18 | ICEJL | 8 | 0 | 6 | 6 | 4 | | | Playoffs | 3 | 1 | 2 | 3 | 0 | |
| 2021-2022 | Augsburger EV U20 | DNL U20 | 36 | 4 | 8 | 12 | 12 | | | Playoffs | 3 | 1 | 1 | 2 | 0 |
| Augsburger Panther | DEL | 3 | 0 | 0 | 0 | 0 | | | |||||||
| 2022-2023 | Augsburger EV U20 | DNL U20 | 14 | 4 | 9 | 13 | 39 | | | ||||||
| Lindau Islanders | Germany3 | 3 | 0 | 0 | 0 | 0 | | | |||||||
| Iserlohner EC U20 | DNL U20 2 | 0 | 0 | 0 | 0 | 0 | | | Qualification | 8 | 4 | 5 | 9 | 4 | |
| Iserlohn Roosters | DEL | 4 | 0 | 0 | 0 | 0 | | | |||||||
| Herner EV Miners | Germany3 | 27 | 8 | 8 | 16 | 10 | | | Playoffs | 2 | 0 | 0 | 0 | 0 | |
| Germany U19 (all) | International-Jr | 4 | 0 | 1 | 1 | 0 | | | |||||||
| 2023-2024 | Hammer Eisbären | Germany3 | 33 | 15 | 15 | 30 | 36 | | | Playoffs | 5 | 2 | 2 | 4 | 8 |
| Germany U20 | WJC-20 | 5 | 0 | 1 | 1 | 0 | | | |||||||
| Germany U20 (all) | International-Jr | 4 | 0 | 2 | 2 | 0 | | | |||||||
| 2024-2025 | Iserlohn Roosters | DEL | 39 | 0 | 1 | 1 | 6 | | | ||||||
| Hammer Eisbären | Germany3 | 6 | 1 | 3 | 4 | 4 | | | |||||||
| 2025-2026 | Iserlohn Roosters | DEL | 2 | 0 | 0 | 0 | 0 | | | ||||||
| Lausitzer Füchse | DEL2 | 14 | 4 | 10 | 14 | 4 | | | |||||||
| Eisbären Berlin | DEL | - | - | - | - | - | | | |||||||
| Eisbären Berlin | Champions HL | 2 | 0 | 0 | 0 | 0 | | |
Lennard Nieleck (* 10. März 2004 in Witten, GER) ist ein deutscher Eishockeyspieler.
