Nanoarchitectonics, as a post‐nanotechnology concept, represents a methodology for the construction of functional materials employing atoms, molecules, and nanomaterials as essential components. The overarching objective of nanoarchitectonics is to develop functional systems comprising multiple functional units assembled in a hierarchical manner, as observed in biological systems. Nevertheless, the construction of such functional systems is a challenging endeavor. It would be prudent, therefore, to initially focus on the development of functional materials that interact with the complex functional structures of living organisms. Accordingly, this review article addresses the topic of nanoarchitecture as it pertains to biomedical applications. This article examines the current trends in research and presents examples of studies that support the concept of nanoarchitectonics and its applications in biomedical fields. The examples presented are as follows: i) molecular nanoarchitectonics developments, which are mainly based on molecular design and assembly; ii) material nanoarchitectonics examples, which are mainly based on material design using nanomaterials as components; and iii) biomedical applications with porous materials, which will be summarized under the heading of pore‐engineered nanoarchitectonics due to their special structure. Finally, the review provides an overview of these examples and discusses future prospects.