Greg Hsu, also known as Greg Han or Hsu Kuang Han, is a Taiwanese actor and model. He is best known for his roles in the dramas Q Series: Love of Sandstorm (2016) and Someday or One Day (2019). He has been nominated for the Best Supporting Actor at the 52nd Golden Bell Awards.

Hsu first appeared in Jay Chou's "Class 3-2" music video in 2003. In 2011, he participated as a contestant in the "Finding Mr. Right" contest held in Channel V (V NEWS) by Kuo Shu-Yao, and finally stood out from five contestants. He made his acting debut in the 2016 drama Love of Sandstorm. He has since appeared in Attention, Love! (2017), Art in Love (2017) and My Dear Boy (2017).

He rose to prominence after starring in the 2019 drama Someday or One Day and even earned the title "Nation's Boyfriend" for his performance.