This special issue on "Microprocesses and Nanotechnology 2024" of the Japanese Journal of Applied Physics (JJAP) is the collection of selected papers from those presented at the 37th International Microprocesses and Nanotechnology Conference (MNC 2024) held in Kyoto, Japan on November 12 to 15, 2024. The scope of this special issue is listed below. Nanotechnology Nanomaterials Nanodevices Nano/micro-fabrication This special issue also contains state-of-the-art lithography, biotechnology, MEMS, and atomic- layer processes. The readers will find the latest achievements of fundamental studies and useful information of industrial applications in nanotechnology research.