Microbial nanotechnology represents a transformative approach in cancer treatment, integrating nanotechnology with the unique properties of microorganisms to develop targeted and efficient therapies. Leveraging bacteria, fungi, and yeast, this field addresses the limitations of traditional treatments like chemotherapy by minimizing cytotoxicity and overcoming drug resistance. Microbes facilitate the synthesis of nanoparticles with precise characteristics, enhancing drug delivery, immunostimulation, and specificity to cancer cells while reducing off-target effects. Additionally, microbial nanotechnology introduces innovations in cancer imaging and biosensing, offering improved detection and monitoring capabilities. Despite challenges in scalability, genetic manipulation, and nanoparticle dispersity control, microbial nanotechnology holds immense potential for eco-friendly, cost-effective, and clinically viable cancer therapies.