The Joint 8th World Congress on Twin Pregnancy and the 20th Congress of the International Society of Twin Studies (ISTS) is a major international event dedicated to the latest research and advancements in twin studies, twin pregnancy, and multiple births. Scheduled to take place in Colombo, Sri Lanka, in August 2025, this congress brings together researchers, clinicians, and experts from diverse fields, including genetics, obstetrics, pediatrics, and psychology, to discuss cutting-edge findings and innovations. The event serves as a platform for knowledge exchange, fostering collaborations and advancing scientific understanding of twins and multiple births. Additionally, it features various competitions and performances, including those by twins, making it a unique blend of academic excellence and cultural celebration.