This article provides a comprehensive survey on interference management techniques in Integrated Sensing and Communication (ISAC) systems. ISAC combines sensing and communication functions in a single system, leveraging shared spectrum and hardware resources to achieve ubiquitous communication and high-precision sensing. However, ISAC systems face severe interference challenges, including self-interference (SI), mutual interference (MI), clutter, and cross-link interference (CLI). The article reviews interference management methods in ISAC systems, covering network architecture, system design, signal processing, and resource allocation. It first reviews channel modeling and performance metrics of ISAC systems. Then, it summarizes methods for managing SI, MI, and clutter in single base station (BS) systems, including interference suppression, avoidance, and exploitation. Furthermore, it studies cooperative interference management methods to address CLI in coordinated multipoint ISAC (CoMP-ISAC) systems. The article also discusses future trends in ISAC interference management. Existing surveys on ISAC mainly focus on system design and signal processing, with limited attention to interference management. This article provides a comprehensive review of interference management techniques in ISAC systems, including SI, MI, clutter, and CLI management methods from suppression, avoidance, and exploitation perspectives. The article also discusses channel modeling, performance metrics, and interference management methods in single BS systems, including SI suppression, MI suppression, avoidance, and exploitation, as well as CLI management. The article concludes with a discussion on future trends in ISAC interference management.This article provides a comprehensive survey on interference management techniques in Integrated Sensing and Communication (ISAC) systems. ISAC combines sensing and communication functions in a single system, leveraging shared spectrum and hardware resources to achieve ubiquitous communication and high-precision sensing. However, ISAC systems face severe interference challenges, including self-interference (SI), mutual interference (MI), clutter, and cross-link interference (CLI). The article reviews interference management methods in ISAC systems, covering network architecture, system design, signal processing, and resource allocation. It first reviews channel modeling and performance metrics of ISAC systems. Then, it summarizes methods for managing SI, MI, and clutter in single base station (BS) systems, including interference suppression, avoidance, and exploitation. Furthermore, it studies cooperative interference management methods to address CLI in coordinated multipoint ISAC (CoMP-ISAC) systems. The article also discusses future trends in ISAC interference management. Existing surveys on ISAC mainly focus on system design and signal processing, with limited attention to interference management. This article provides a comprehensive review of interference management techniques in ISAC systems, including SI, MI, clutter, and CLI management methods from suppression, avoidance, and exploitation perspectives. The article also discusses channel modeling, performance metrics, and interference management methods in single BS systems, including SI suppression, MI suppression, avoidance, and exploitation, as well as CLI management. The article concludes with a discussion on future trends in ISAC interference management.