The pro-Republic of China camp (Chinese: 親中華民國派 or 民國派), or the pro-Kuomintang camp (親國民黨派), is a political alignment in Hong Kong. It generally pledges allegiance to the Republic of China (ROC) in Taiwan and the Kuomintang (Chinese Nationalist Party).

The pro-ROC camp were called "Rightists" and was one of the two major political forces in Hong Kong during the first decades of the post-war period of the British colony of Hong Kong. The pro-ROC camp, who competed with the pro-Communist ("Leftists"), has gradually declined in numbers after the Republic of China's departure from the United Nations in 1971 and the signing of the Sino-British Joint Declaration in 1984 which decided Hong Kong's sovereignty to be handed over to the People's Republic of China (PRC). Today, it is generally aligned with the pro-democracy camp in Hong Kong and the Pan-Blue Coalition in Taiwan led by the Kuomintang.

The pro-ROC camp closely follows the Kuomintang's doctrines, including Sun Yat-sen's Three Principles of the People and the 1992 Consensus of Cross-strait relations. It opposes Taiwan independence and also supports universal suffrage in Hong Kong. The only elected representatives of the pro-ROC camp in the post-handover era are from the Democratic Alliance, of which party chairman Johnny Mak and Shek King-ching occupied seats in the Yuen Long District Council until 2021.

The support base of the Kuomintang has existed even before the founding of the Republic of China (ROC), as its founding father Sun Yat-sen was a medical student in British Hong Kong in the late 19th century and set up anti-Qing revolutionary organisations in Hong Kong. After the founding of the Republic, Hong Kong pro-Nationalist forces remained their close contact with the Nationalist revolutionary government in Canton. With the Canton's support, the pro-Nationalists and pro-Communists launched the 1922 Hong Kong Seamens' Strike and 1925 Canton–Hong Kong General Strike. In 1927, the pro-Nationalists gained their status as the Nationalist Party became the official government in China until 1949.

The Chinese Civil War saw the influx of pro-Kuomintang refugees and former soldiers to Hong Kong who were driven from their homeland by the Communists, and they first settled at refugee centers in Kai Lung Wan. After years of exile and grinding poverty, many of them were steeped in bitterness and yearning for revenge against the Communists. The pro-Kuomintang triad members played a key part in the Double Ten riots, which was escalated from provocations between pro-Nationalist and pro-Communist factions in 1956. A government official ordered that Republic of China flags be removed from the Lei Cheng Uk estate, eventually leading to the riots. After the riots ended, the colonial government decided to move the Nationalists to a more remote spot. This became the most iconic pro-Nationalist neighbourhood Rennie's Mill, which was a Nationalist enclave in the colony until it was redeveloped into the Tseung Kwan O New Town in the 1990s on the eve of the handover of Hong Kong.

The KMT also subsidized schools in Hong Kong via the Overseas Chinese Affairs Commission, such as the Hong Kong Tak Ming College and Chu Hai College of Higher Education. The British government in Hong Kong did not recognize Chu Hai College's accreditation, so it was instead registered under the Republic of China's Ministry of Education, giving it recognition as if the school were located in Taiwan.

Some Hong Kong newspapers advertised joining the KMT military, and a number of Hong Kong residents signed up and defended Kinmen Island in 1958. Some of these members returned to Hong Kong and joined the Republic of China Veterans' Association, where they gathered at the Red House every National Day.

The political scene in Hong Kong was split into pro-Nationalist and pro-Communist factions in the first decades of the post-war Hong Kong, of which both camps controlled various sectors from labour unions, schools, media to film companies. The largest pro-Nationalist trade unions was the Hong Kong and Kowloon Trades Union Council (TUC) established in 1948, which was the main rival of the pro-Communist Hong Kong and Kowloon Federation of Trade Unions (FTU). The pro-Nationalist forces also owned the Hong Kong Times which was founded in 1949 with an anti-communist stance and was regarded as a Kuomintang party organ. Many major newspapers at that time were also generally pro-Nationalist, such as the Kung Sheung Daily News, Wah Kiu Yat Pao and the Sing Tao Daily which used the Minguo calendar until the 1980s or 90s.^{[clarification needed]}