King Zakarine (Lao: ສັກຣິນທຣ໌; also known as Sakkarin, Sakharine, Sackarine, Zackarine and Zacharine; originally Kham Souk, Lao: ຄຳສຸກ; full name: Samdach Brhat Chao Maha Sri Vitha Lan Xang Hom Khao Luang Prabang Parama Sidha Khattiya Suriya Varman Brhat Maha Sri Sakarindra, Lao: ສົມເດັຈພຣະເຈົ້າມະຫາວິຕລ້ານຊ້າງຮົ່ມຂາວ ຫລວງພຣະບາງ ປຣມະສິທະຂັຕິຍະສຸຣິຍະວໍຣມັນ ພຣະມຫາຊິວິຕ ສີສັກະຣິນທຣ໌) (16 July 1840 – 25 March 1904) was the king of Luang Prabang from 1895 to 1904.

He was educated privately, a privilege reserved for wealthy Lao people at the time.

Thongsy was childless, so he adopted Queen Khamphane, wife of King Sisavang Vong.

He commanded the Royal Forces against the Haw invasion (Chinese rebels of the Taiping rebellion) in 1874.

Zakarine officially succeeded his father on 15 December 1895 and was crowned at Luang Prabang on 14 July 1896.