Kōna Takahashi

is a Japanese professional baseball pitcher for the Saitama Seibu Lions of Nippon Professional Baseball (NPB).

Career Takahashi was a member of the Melbourne Aces of the Australian Baseball League for the 2017–18 season.

Takahashi made 26 appearances for the Saitama Seibu Lions in 2022, compiling a 12–8 record and 2.20 ERA with 128 strikeouts across innings pitched. In 2023, he pitched in 23 games, accumulating a 10–8 record and 2.21 ERA with 120 strikeouts across 155 innings pitched.

Takahashi struggled in 2024, with a 0-11 record and a 3.87 ERA, and spent time in the minor leagues. After bouncing back in 2025, with an ERA under 3 in late August, reports emerged that the Seibu Lions were planning on posting Takahashi for Major League Baseball (MLB) at the season's end. The Lions posted Takahashi, but he did not reach an agreement with an MLB team during the posting window and returned to the Lions.