Calbayog is known as the city of Water Falls. It is the first class city in the province of Samar, Philippines. It has estimated population of 183,851 and population density of 210 person per km. it is the sixth largest city in terms of land and water areas in the Philippines. Native language is Waray and Tagalog.

Calbayog is one of the commercial trade centers in Eastern Visayas and was subdivided into three mayor districts; Calbayog, Tinambacan and Oquendo.

The city offers opportunities in agribusiness and food processing especially and food processing especially sweets, meat and fish processing. Producing items from abaca and coconut is a priority in the city. The city also manufactured furniture, clothing and fashion accessories, jewelry, personal care and other consumer goods. The establishment of commercial complexes and tourist facilities are welcomed in this city.

There are many things to do in Calbayog city like going to Tarangban Falls, St. Peter and Paul Cathedral, Malajog (looc) beach, Guinogo-an Cave, Almagro Island, Tabokno Falls, Mawacat Falls Slide, Bagacay Beach, Daraga Island, Naga beach, Calbiga Beach, Maposo Hot Spring, City Forest and Marble Park, Nijaga Park, Zipline and Aerial adventure Parks, Gift and Specialty shops, Dance Clubs and discos, Bars and Clubs, Gaisano Grand Calbayog, Sacred Heart Plaza, Samar Archaeological Museum, Pan-as Falls, Stone Marble Mountain and Ton-ok Falls and many more others.