This two-volume set CCIS 2687-2688 constitutes the proceedings from the Third International Conference on Deep Sciences for Computing and Communications, IconDeepCom 2024, held in Chennai, India, during April 24-25, 2024. The 71 full papers, 7 short papers included in these volumes were carefully reviewed and selected from 278 submissions. They focus on the following topical sections:Part I: Intelligent Visual Recognition and Detection using YOLO; AI in Medical Imaging and Disease Prediction; Leveraging  Machine Learning Across Diverse Domain; Advanced Deep Learning Applications; Real-World Use Cases Powered by CNN Models. Part II: Smart Data Science and Analytics ; AI-Powered IoT Solutions for a connected world; NLP for Multilingual Support; AI driven Security Solutions; Intelligence in Software Engineering and IT.