Purbaya Polytechnic Institute, officially Politeknik Purbaya, is a private coeducationalvocational education institution located in Tegal Regency, Central Java Province, Indonesia. It is the first technical higher education institution in the regency. Its campus is situated at Jalan Pancakarya No. 1 Talang. The polytechnic is operated autonomously under patronage of Yayasan Pertiwi di Tegal (The Pertiwi in Tegal Foundation).
Purbaya was established in 2002 by Mr H. Soediarto, the Regent of Tegal at the time and his wife Mrs. Hj. Sri Adiyati Soediarto. It was named after Raden Purbayasa, the first Regent of Tegal. The polytechnic's operating permit was issued by Ministry of National Education (now Ministry of Research, Technology and Higher Education) with Minister Decree No. 208/D/O/2002.