Blockchain technology, brought into existence in the year 2008 by Satoshi Nakamoto, is an open and distributed ledger tool offering secure and permanent storage of transactions. It offers decentralized control of transactions. Over the period, three different versions of blockchain have been developed. It is widely used in sectors like healthcare, education, etc. Circular economy is such a production and consumption ecosystem that focuses on waste reduction, reuse, and recycling. The present study tries to analyze the avant-garde state of blockchain technology's application for circular economy by adopting a bibliometric and systematic approach. Taking a filtered sample of 1339 papers from Scopus database, bibliometric analysis was conducted with an aim to understand the evolution of blockchain's usage in circular economy. Later, systematic review of the relevant papers is done that highlighted major prospects and barriers to blockchain's adoption. The study also cites present applications of blockchain by corporates and governments. Finally, it concludes with suggestions for blockchain's better adoption. The present study is one of its kind, true to the knowledge of the authors. Such bibliometric analysis combined with systematic review is an outcome of the original work of the authors. The combined results of the two reviews have not yet been done in the field of study.