Concrete 3D printing is an innovative technology that reduces material waste, increases construction speed, and enables the creation of complex and customized shapes, which are difficult to realize with conventional methods. However, most 3D-printed concretes today comprise high cement content, leading to high embodied carbon. Different cementitious materials have been explored to reduce the environmental impact of 3D-printed concrete. Nano-clays have emerged as promising admixtures capable of enhancing the printability of low-cement mixes. Furthermore, incorporating nano-clay into 3D-printed concrete can positively impact its tensile bond strength.