The core concept of Industry 4.0 involves the integration of information and communication technologies with physical elements in industrial settings. While this concept is gradually gaining traction in many economies, some sectors are already transitioning towards Industry 5.0. This next phase aims to prioritize human-centric development, sustainability, and resilience. Additive manufacturing (AM), one of the core technologies that is at the forefront of driving the next Industrial Revolution, has significantly transformed the product development cycle by enabling rapid prototyping and the production of intricate components with high accuracy and visual quality comparable to traditional methods. As industries move towards Industry 5.0, characterized by the fusion of human creativity and advanced digital technologies, AM and 3D printing stand out for their potential to offer unprecedented levels of customization, efficiency, and sustainability. This chapter provides a comprehensive summary of current AM and 3D printing technologies. It covers major AM techniques, their underlying principles, and the influence of powder characteristics on the properties of parts. Applications of these technologies across diverse sectors such as automotive, aerospace, biomedical, and architecture are also explored. Moreover, the chapter discusses sustainability and future prospects for AM within the Industry 5.0 framework, including potential innovations and their implications for the manufacturing landscape.