Teo Ee Yi (simplified Chinese: 张御宇; traditional Chinese: 張御宇; pinyin: Zhāng Yù Yǔ; Jyutping: Zoeng1 Jyu6 Jyu5; Pe̍h-ōe-jī: Tiuⁿ Gū-ú; born 4 April 1993) is a Malaysian badminton player.

[3] Teo won his first Grand Prix title at the 2016 Bitburger Open with his partner, Ong Yew Sin.

[4] Teo and Ong earned a silver and a bronze medal at the 2017 and 2019 SEA Games respectively.

[8][9] Their best achievement was winning the men's doubles silver medal at the 2023 Badminton Asia Championships after narrowly losing to Satwiksairaj Rankireddy and Chirag Shetty with score of 21–16, 17–21, 19–21 in 66 minutes.

They won the men's doubles bronze medal at the 2021 BWF World Championships, where they had to go through a narrow fight against Olympic champions Lee Yang and Wang Chi-lin in the quarterfinals.