Rennell and Bellona Province Day is a provincial holiday celebrated in the Solomon Islands specifically within the Rennell and Bellona Province. This holiday pays tribute to the culture and heritage of the people living in this region, acknowledging their unique contributions to the nation's identity. It is normally filled with vibrant celebrations, cultural performances, feasts, and parades depicting the rich history and traditions of the province.

The Rennell and Bellona Province, represented by the states' initials RBP, has its special day that emphasizes not only festive bonding but also increased awareness of conservational cause. This province is known for its natural beauty, hosting the largest raised coral atoll in the world, a UNESCO World Heritage Site. On this Day, there is an emphasis on the importance of preserving these natural wonders for future generations.

Rennell and Bellona Province Day plays a significant role in fostering unity and community spirit among the locals. It is a time for the people of RBP to demonstrate pride in their province, as well as share their traditions with visitors from other parts of Solomon Islands and beyond. True to the nature of islander hospitality, the celebrations extend a warm welcome to international guests, effectively making the commemoration of this day an enriching cultural exchange.