Cha Hyo-sim (Korean: 차효심; Hanja: 車孝心[3], born 15 July 1994) is a North Korean table tennis player.

In July 2018, she and South Korea's Jang Woo-jin made history when they won the mixed doubles title at the 2018 Korea Open, beating China's Sun Yingsha and Wang Chuqin 3–1 in the final before a huge crowd.

It was their first tournament as partners, and the first international event won by an inter-Korean pair.

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