The emergence of sustainable tourism has been seamlessly replacing many facets of traditional tourism. ICT is regarded as an ideal partner to sustainable tourism as it can proficiently disseminate information and services. Several research studies have been conducted to study this synergy. This systematic review aims to investigate the emerging ICT discourse in sustainable tourism using the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA). Relevant articles were searched in the most common databases. Out of 357 articles retrieved, 41 articles were selected for the final analysis based on inclusion-exclusion criteria. MS Excel and Zotero applications were used. It has been observed that most commonly researched topics in ICT in sustainable tourism include GIS, web applications, gaming, Augmented Reality, IoTs and social media. This review identifies a need for a larger body of research focusing on ICT use in sustainable tourism and supports its advancement by identifying future directions.