Phra Phutthawithinayok (), commonly known as Luang Pu Perm (), was a highly respected Thai Buddhist monk of the Mahanikaya order. His dharma name was Punyavasano (). He served as abbot of Wat Klang Bang Kaew and was district ecclesiastical head (chao khana amphoe) of Nakhon Chai Si.
Phra Phutthawithinayok was born on 29 January 1890 during the reign of King Chulalongkorn (Rama V). He was ordained as a novice in 1894 at the age of 8, and later entered the monkhood as a full bhikkhu on 12 July 1907 at Wat Klang Bang Kaew. His preceptor was Ariyavangsagatayana (Pae Tissadeva), then still holding the title Somdet Phra Wanarat. The ritual was assisted by Phra Athikan Chom, abbot of Wat Tukkata, as kammavÃÂcÃÂcariya (chanting master), and Phra Khru Thaksinanukit of Wat Sapphachet as anusavanÃÂcariya (reciting master).
He studied Dhamma and Vinaya at Wat Klang Bang Kaew and became the foremost disciple of Luang Pu Boon Khanthachot. He remained in service to Luang Pu Bun until his death in 1935. Afterward, he continued to preserve and transmit his teacher's lineage.
Luang Pu Perm received the following ecclesiastical titles and appointments:
Luang Pu Perm created several sacred objects (watthumongkhon) that are still well known among devotees:
Throughout his life, Luang Pu Perm was known for his strict discipline, moral conduct, and dedication to education and social development. He supported schools, nurtured youth, and inspired widespread faith and respect among lay followers. His contributions to Thai Buddhism were considered vast and enduring.
Luang Pu Perm died on 6 January 1983, at the age of 96, after 75 years in the monkhood.