Isaiah Hartenstein (/ˈhɑːrtənʃtaɪn/ HAR-tən-shtyne, German: ) (born May 5, 1998) is a German-American professional basketball player for the Oklahoma City Thunder of the National Basketball Association (NBA). He has played for the Germany men's national basketball team.

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| Points | NBA | 2023-2024 | 582 |
| Personal Fouls | NBA | 2023-2024 | 210 |
| Turnovers | NBA | 2023-2024 | 93 |
| Blocks | NBA | 2023-2024 | 85 |
| Steals | NBA | 2023-2024 | 87 |
| Assists | NBA | 2023-2024 | 188 |
| Total Rebounds | NBA | 2023-2024 | 626 |
| Defensive Rebounds | NBA | 2023-2024 | 382 |
| Offensive Rebounds | NBA | 2023-2024 | 244 |
| Free Throw Percentage | NBA | 2023-2024 | .707 |
| Free Throw Attempts | NBA | 2023-2024 | 157 |
| Free Throws | NBA | 2023-2024 | 111 |
| Effective Field Goal Percentage | NBA | 2023-2024 | .645 |
| 2-Point Field Goal Average | NBA | 2023-2024 | .646 |
| 2-Point Field Goal Attempts | NBA | 2023-2024 | 362 |
| 2-Point Field Goals | NBA | 2023-2024 | 234 |
| 3-Point Field Goal Percentage | NBA | 2023-2024 | .333 |
| 3-Point Field Goal Attempts | NBA | 2023-2024 | 3 |
| 3-Point Field Goals | NBA | 2023-2024 | 1 |
| Field Goal Percentage | NBA | 2023-2024 | .644 |
| Field Goal Attempts | NBA | 2023-2024 | 365 |
| Field Goals | NBA | 2023-2024 | 235 |
| Minutes Played | NBA | 2023-2024 | 1896 |
| Games Started | NBA | 2023-2024 | 49 |
| Games | NBA | 2023-2024 | 75 |
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| Points | NBA | 2022-2023 | 406 |
| Personal Fouls | NBA | 2022-2023 | 213 |
| Turnovers | NBA | 2022-2023 | 66 |
| Blocks | NBA | 2022-2023 | 64 |
| Steals | NBA | 2022-2023 | 53 |
| Assists | NBA | 2022-2023 | 102 |
| Total Rebounds | NBA | 2022-2023 | 536 |
| Defensive Rebounds | NBA | 2022-2023 | 327 |
| Offensive Rebounds | NBA | 2022-2023 | 209 |
| Free Throw Percentage | NBA | 2022-2023 | .676 |
| Free Throw Attempts | NBA | 2022-2023 | 71 |
| Free Throws | NBA | 2022-2023 | 48 |
| Effective Field Goal Percentage | NBA | 2022-2023 | .547 |
| 2-Point Field Goal Average | NBA | 2022-2023 | .576 |
| 2-Point Field Goal Attempts | NBA | 2022-2023 | 290 |
| 2-Point Field Goals | NBA | 2022-2023 | 167 |
| 3-Point Field Goal Percentage | NBA | 2022-2023 | .216 |
| 3-Point Field Goal Attempts | NBA | 2022-2023 | 37 |
| 3-Point Field Goals | NBA | 2022-2023 | 8 |
| Field Goal Percentage | NBA | 2022-2023 | .535 |
| Field Goal Attempts | NBA | 2022-2023 | 327 |
| Field Goals | NBA | 2022-2023 | 175 |
| Minutes Played | NBA | 2022-2023 | 1626 |
| Games Started | NBA | 2022-2023 | 8 |
| Games | NBA | 2022-2023 | 82 |
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| Points | NBA | 2021-2022 | 563 |
| Personal Fouls | NBA | 2021-2022 | 167 |
| Turnovers | NBA | 2021-2022 | 84 |
| Blocks | NBA | 2021-2022 | 77 |
| Steals | NBA | 2021-2022 | 50 |
| Assists | NBA | 2021-2022 | 160 |
| Total Rebounds | NBA | 2021-2022 | 332 |
| Defensive Rebounds | NBA | 2021-2022 | 215 |
| Offensive Rebounds | NBA | 2021-2022 | 117 |
| Free Throw Percentage | NBA | 2021-2022 | .689 |
| Free Throw Attempts | NBA | 2021-2022 | 132 |
| Free Throws | NBA | 2021-2022 | 91 |
| Effective Field Goal Percentage | NBA | 2021-2022 | .645 |
| 2-Point Field Goal Average | NBA | 2021-2022 | .640 |
| 2-Point Field Goal Attempts | NBA | 2021-2022 | 336 |
| 2-Point Field Goals | NBA | 2021-2022 | 215 |
| 3-Point Field Goal Percentage | NBA | 2021-2022 | .467 |
| 3-Point Field Goal Attempts | NBA | 2021-2022 | 30 |
| 3-Point Field Goals | NBA | 2021-2022 | 14 |
| Field Goal Percentage | NBA | 2021-2022 | .626 |
| Field Goal Attempts | NBA | 2021-2022 | 366 |
| Field Goals | NBA | 2021-2022 | 229 |
| Minutes Played | NBA | 2021-2022 | 1216 |
| Games Started | NBA | 2021-2022 | 0 |
| Games | NBA | 2021-2022 | 68 |
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| Points | NBA | 2020-2021 | 132 |
| Personal Fouls | NBA | 2020-2021 | 45 |
| Turnovers | NBA | 2020-2021 | 23 |
| Blocks | NBA | 2020-2021 | 19 |
| Steals | NBA | 2020-2021 | 8 |
| Assists | NBA | 2020-2021 | 40 |
| Total Rebounds | NBA | 2020-2021 | 96 |
| Defensive Rebounds | NBA | 2020-2021 | 71 |
| Offensive Rebounds | NBA | 2020-2021 | 25 |
| Free Throw Percentage | NBA | 2020-2021 | .686 |
| Free Throw Attempts | NBA | 2020-2021 | 35 |
| Free Throws | NBA | 2020-2021 | 24 |
| Effective Field Goal Percentage | NBA | 2020-2021 | .593 |
| 2-Point Field Goal Average | NBA | 2020-2021 | .600 |
| 2-Point Field Goal Attempts | NBA | 2020-2021 | 85 |
| 2-Point Field Goals | NBA | 2020-2021 | 51 |
| 3-Point Field Goal Percentage | NBA | 2020-2021 | .333 |
| 3-Point Field Goal Attempts | NBA | 2020-2021 | 6 |
| 3-Point Field Goals | NBA | 2020-2021 | 2 |
| Field Goal Percentage | NBA | 2020-2021 | .582 |
| Field Goal Attempts | NBA | 2020-2021 | 91 |
| Field Goals | NBA | 2020-2021 | 53 |
| Minutes Played | NBA | 2020-2021 | 287 |
| Games Started | NBA | 2020-2021 | 2 |
| Games | NBA | 2020-2021 | 16 |
| Points | NBA | 2020-2021 | 104 |
| Personal Fouls | NBA | 2020-2021 | 59 |
| Turnovers | NBA | 2020-2021 | 21 |
| Blocks | NBA | 2020-2021 | 20 |
| Steals | NBA | 2020-2021 | 11 |
| Assists | NBA | 2020-2021 | 15 |
| Total Rebounds | NBA | 2020-2021 | 85 |
| Defensive Rebounds | NBA | 2020-2021 | 45 |
| Offensive Rebounds | NBA | 2020-2021 | 40 |
| Free Throw Percentage | NBA | 2020-2021 | .611 |
| Free Throw Attempts | NBA | 2020-2021 | 36 |
| Free Throws | NBA | 2020-2021 | 22 |
| Effective Field Goal Percentage | NBA | 2020-2021 | .513 |
| 2-Point Field Goal Average | NBA | 2020-2021 | .513 |
| 2-Point Field Goal Attempts | NBA | 2020-2021 | 80 |
| 2-Point Field Goals | NBA | 2020-2021 | 41 |
| 3-Point Field Goal Attempts | NBA | 2020-2021 | 0 |
| 3-Point Field Goals | NBA | 2020-2021 | 0 |
| Field Goal Percentage | NBA | 2020-2021 | .513 |
| Field Goal Attempts | NBA | 2020-2021 | 80 |
| Field Goals | NBA | 2020-2021 | 41 |
| Minutes Played | NBA | 2020-2021 | 272 |
| Games Started | NBA | 2020-2021 | 0 |
| Games | NBA | 2020-2021 | 30 |
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| Points | NBA | 2019-2020 | 107 |
| Personal Fouls | NBA | 2019-2020 | 41 |
| Turnovers | NBA | 2019-2020 | 16 |
| Blocks | NBA | 2019-2020 | 12 |
| Steals | NBA | 2019-2020 | 9 |
| Assists | NBA | 2019-2020 | 18 |
| Total Rebounds | NBA | 2019-2020 | 90 |
| Defensive Rebounds | NBA | 2019-2020 | 61 |
| Offensive Rebounds | NBA | 2019-2020 | 29 |
| Free Throw Percentage | NBA | 2019-2020 | .679 |
| Free Throw Attempts | NBA | 2019-2020 | 28 |
| Free Throws | NBA | 2019-2020 | 19 |
| Effective Field Goal Percentage | NBA | 2019-2020 | .657 |
| 2-Point Field Goal Average | NBA | 2019-2020 | .710 |
| 2-Point Field Goal Attempts | NBA | 2019-2020 | 62 |
| 2-Point Field Goals | NBA | 2019-2020 | 44 |
| 3-Point Field Goal Percentage | NBA | 2019-2020 | .000 |
| 3-Point Field Goal Attempts | NBA | 2019-2020 | 5 |
| 3-Point Field Goals | NBA | 2019-2020 | 0 |
| Field Goal Percentage | NBA | 2019-2020 | .657 |
| Field Goal Attempts | NBA | 2019-2020 | 67 |
| Field Goals | NBA | 2019-2020 | 44 |
| Minutes Played | NBA | 2019-2020 | 266 |
| Games Started | NBA | 2019-2020 | 2 |
| Games | NBA | 2019-2020 | 23 |
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| Points | NBA | 2018-2019 | 53 |
| Personal Fouls | NBA | 2018-2019 | 56 |
| Turnovers | NBA | 2018-2019 | 13 |
| Blocks | NBA | 2018-2019 | 12 |
| Steals | NBA | 2018-2019 | 7 |
| Assists | NBA | 2018-2019 | 15 |
| Total Rebounds | NBA | 2018-2019 | 47 |
| Defensive Rebounds | NBA | 2018-2019 | 26 |
| Offensive Rebounds | NBA | 2018-2019 | 21 |
| Free Throw Percentage | NBA | 2018-2019 | .786 |
| Free Throw Attempts | NBA | 2018-2019 | 14 |
| Free Throws | NBA | 2018-2019 | 11 |
| Effective Field Goal Percentage | NBA | 2018-2019 | .512 |
| 2-Point Field Goal Average | NBA | 2018-2019 | .514 |
| 2-Point Field Goal Attempts | NBA | 2018-2019 | 35 |
| 2-Point Field Goals | NBA | 2018-2019 | 18 |
| 3-Point Field Goal Percentage | NBA | 2018-2019 | .333 |
| 3-Point Field Goal Attempts | NBA | 2018-2019 | 6 |
| 3-Point Field Goals | NBA | 2018-2019 | 2 |
| Field Goal Percentage | NBA | 2018-2019 | .488 |
| Field Goal Attempts | NBA | 2018-2019 | 41 |
| Field Goals | NBA | 2018-2019 | 20 |
| Minutes Played | NBA | 2018-2019 | 221 |
| Games Started | NBA | 2018-2019 | 0 |
| Games | NBA | 2018-2019 | 28 |
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