The integration of Internet of Things (IoT) technologies in agriculture is revolutionizing traditional farming by enabling real-time monitoring, automation, and data-driven decision-making. This chapter examines how IoT enhances agricultural practices through interconnected systems such as soil moisture sensors, weather stations, drones, smart irrigation, and livestock monitoring devices. These technologies collect and transmit critical data, allowing farmers to optimize resource use, improve crop yields, and detect issues like disease or nutrient deficiencies early. The combination of IoT with artificial intelligence (AI) further amplifies efficiency by enabling predictive analytics, precision farming, and automated machinery. Applications range from monitoring soil health and environmental conditions to tracking livestock behavior and automating irrigation systems. IoT also empowers smallholder farmers by making precision agriculture tools more accessible via mobile platforms. The chapter emphasizes the potential of IoT to reduce environmental impacts, conserve water, minimize chemical usage, and increase resilience to climate change. As global food demand rises, IoT emerges as a crucial tool for ensuring food security and promoting sustainable farming practices. By transforming agricultural systems into intelligent, connected networks, IoT paves the way for a more efficient, productive, and environmentally responsible future in agriculture.