Calcium phosphate compounds have generated massive interest because of their wide variety of applications in the diverse fields of science and technology. Among these compounds, hydroxyapatite (HAp)come across in significant applications because it is biocompatible, bioactive, resorbable and nontoxic in nature. The Ca/P ratio of HAp is the important factor that decides its efficiency in different applications. The chemical composition and microstructural properties of HAp are, however, strongly dependent on the methodsof isolation and sources from which it is extracted. Basing on these annotations HAp is synthesized profitably not only through chemical route but also from many unconventional biodegradable resources for prospective applications. The physicochemical science, biopharmaceutical industry, sensor initiative, polymer industry, biology, agriculture, catalysis etc. are some of the foremost areas where HAp is utilized extensively. The present review is an up-to-date compilation of the utilization of HAp in adsorption, catalytic and biological fields. The key structural scaffolds present in HAp required for these applications have been delineated and supplemented with some explicit cases concerning the acute problems experiencedby the societysince last few decades. Needless to say, that HAp would play a vital role for the global benefits for present as well as for all years to come