Kai-Wei Teng (Chinese: 鄧愷威; Wade–Giles: Teng4 Kai3-wei1; born December 1, 1998) is a Taiwanese professional baseball pitcher in the San Francisco Giants organization.

[2] He made his professional debut with the rookie–level Gulf Coast League Twins in 2018, making 10 appearances (9 starts) and posting a 3.59 ERA with 47 strikeouts in 42+2⁄3 innings pitched.

On July 31, 2019, the Twins traded Teng, Jaylin Davis, and Prelander Berroa to the San Francisco Giants in exchange for Sam Dyson.

[8] Teng spent the 2022 season with the Double–A Richmond Flying Squirrels, making 28 starts and registering a 6–12 record and 5.22 ERA with a career–high 169 strikeouts in 136+1⁄3 innings pitched.

[22] Teng played for the Taiwanese national team (Chinese Taipei) in the 2019 Asian Baseball Championship, pitching in the gold medal game against Japan, which Taiwan won.