Human trachea tissue samples are specimens of the windpipe, the main airway connecting the larynx to the bronchi. These samples are vital for research into tracheal diseases, tissue engineering, and regenerative medicine. The trachea is composed of cartilage, smooth muscle, and a ciliated epithelial lining, all of which are critical for its function in air conduction, filtration, and mucociliary clearance. Researchers use these samples to study structural integrity, cellular composition, and the response to injury or disease, as well as for developing tissue-engineered tracheal grafts for repair and reconstruction. Samples can be provided as sections from fixed tissue in paraffin blocks or OCT, or as snapfrosts of fresh tissues.