Kai Schäfer
Kai Hendrik Schäfer is a German badminton player.
Achievements
BWF International Challenge/Series
Men's singles| Year | Tournament | Opponent | Score | Result |
| 2019 | Denmark International |  Hans-Kristian Vittinghus | 16–21, 18–21 | Runner-up |
| 2018 | Polish International |  Harsheel Dani | 21–14, 20–22, 21–9 | Winner |
| 2017 | Lithuanian International |  Léo Rossi | 21–17, 21–14 | Winner |
| 2017 | Latvia International |  Kasper Lehikoinen | 21–11, 21–14 | Winner |
Men's doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2014 | Mauritius International |  Tobias Wadenka | Raphael Beck Andreas Heinz | 21–18, 18–21, 20–22 | Runner-up |