Haslar is a historic area located in Gosport, Hampshire, England. It is known for its naval heritage, particularly the Haslar Naval Base, which has played a significant role in the British Royal Navy since the 18th century. The area features a mix of residential and commercial properties, along with scenic views of Portsmouth Harbour. The Haslar Hospital, established in 1746, was one of the first naval hospitals in the world. It provided medical care to sailors and marines, reflecting the importance of maritime health services. Today, Haslar continues to be a point of interest for its rich history and connection to the sea.