Pirapat Watthanasetsiri (พิรพัฒน์ วัฒนเศรษสิริ; born February 23, 1994), nicknamed Earth (เอิร์ธ), is a Thai actor under GMMTV. In 2018, he graduated with a bachelor's degree from the Faculty of Fine Arts at Srinakharinwirot University, majoring in Performing Arts.

He made his acting debut in 2016 with a guest role in the special short film "Little Big Dream" (ความฝันอันสูงสุด).