Conventional student identification cards offer limited functionality and are susceptible to loss, duplication, and manual verification errors. To overcome these limitations, this paper presents an Augmented Reality Based Student ID (ARSID) system that enhances traditional identification methods by overlaying digital student information onto a physical ID card using augmented reality technology. The proposed system utilises an AR marker embedded within the student ID card, which is scanned using a mobile application to retrieve and display verified student details such as name, roll number, department, academic year, and photograph in real time. A centralised database ensures secure storage and quick access to student information. Experimental evaluation demonstrates that the ARSID system significantly reduces verification time and improves authentication efficiency compared to conventional ID systems. The proposed solution is suitable for smart campus environments and enhances security, automation, and user experience. Keyword: Augmented Reality, Student Identification, AR Marker, Smart Campus, Mobile Application