Industrial RCC chimneys are tall and slender structures that play a vital role in dispersing flue gases at higher elevations to reduce environmental pollution at ground level. Due to their height and geometry, these structures are highly susceptible to lateral loads such as wind and seismic forces. The present project focuses on the analysis and design of a self-supporting reinforced cement concrete (RCC) chimney by considering wind load, seismic load, self-weight, and geometrical parameters in accordance with Indian Standard codes.The study investigates the influence of chimney geometry, particularly the height-to-diameter ratio and top-to-base diameter ratio, on the structural behavior of RCC chimneys. Manual calculations and finite element analysis are carried out using software tools such as STAAD.Pro and ANSYS to evaluate stresses, bending moments, and lateral displacements. Dynamic wind effects, vortex shedding, and seismic behavior are also examined as per IS 6533 and IS 1893 provisions. The results highlight the critical role of geometry in governing the structural response of RCC chimneys. It is observed that wind load is the dominant factor influencing the design, and increased height and slenderness significantly amplify bending moments and displacements. The study also emphasizes the importance of considering inspection manholes and dynamic effects in chimney design for ensuring safety and durability.