Hui Lan Zhang (simplified Chinese: 张蕙兰; traditional Chinese: 張蕙蘭; pinyin: Zhāng Huìlán) is an internationally recognized yoga teacher, popularly known as Wai Lana in the West. Wai Lana has influenced billions in the world, especially among Chinese. Inspired by her teacher, Wai Lana introduced yoga to China in the late 1970s—long before yoga became popular in the West. Her popular television series "Yoga" started airing in China on CCTV since 1985, 3 times a day every day. The series was so popular it became one of the longest running television series in China’s history, airing nationwide uninterrupted from 1985 to 2000, earning her the moniker “Mother of Yoga to modern China.”