The Port of Keelung (Chinese: 基隆港; Hanyu Pinyin: Jīlóng gǎng; Tongyong Pinyin: Jilóng Gǎng; Wade–Giles: Chi-lung-kang; Pe̍h-ōe-jī: Ke-lâng-káng), also known as Keelung Harbor, is located in the vicinity of Keelung City, Taiwan. It is operated by Taiwan International Ports Corporation, Taiwan's only state-owned port management company.
The 1858 Treaty of Tientsin specified Tamsui as an open port. The Port of Keelung opened few years later in 1886. In the Japanese colonial period, the Governor-General of Taiwan started the development of Keelung Harbor. By the early and middle 20th century, it was the largest port in Taiwan at the time. The Port of Keelung brought prosperity to the city of Keelung, with Keelung growing into the 4th largest city in Taiwan (after Taipei, Tainan, Kaohsiung).
Following the defeat of the Japanese in the Second World War, the Japanese army retreated from Taiwan through the Port of Keelung. It was also the main port through which Chinese officials entered Taiwan to take over Taiwan from Japan. With the rapid economic growth in Taiwan during the 1960s-70s, the Port of Keelung became one of the busiest ports in the world. In 1984, Port of Keelung was the 7th busiest cargo port in the world.