Ostap is a masculine given name of Ukrainian origin, derived from the Greek name Eustathius. It is composed of two elements: 'eu' meaning "good" and 'stathmos' translating to "military order" or "camp". Thus, Ostap can be interpreted as "having good military order" or "bringing good organization". This name has been popular in Ukraine for many centuries and was often given to boys born into noble families. It is associated with the rich history and culture of Ukraine.
Ostap has seen a steady increase in its popularity as a baby name over the past decade, with a significant leap from 5 births in both 2013 and 2020 to 10 births in 2022. This trend continued into 2023 with 6 births recorded. In total, there have been 26 babies named Ostap since 2013.