During Mahathir Mohamad's second term as the Prime Minister of Malaysia, he embarked on a series of official visits to various countries. These visits aimed to strengthen diplomatic ties, promote economic cooperation, and engage in discussions on global and regional issues. He did not make any international trips in 2020. Some of the notable official visits made by Mahathir during his second term include:

Summary

The number of visits per country where Prime Minister Mahathir Mohamad travelled are: One: Brunei, Papua New Guinea, Senegal, Austria, Philippines, Pakistan, Turkey, Vietnam, Cambodia, Russia, Azerbaijan, Turkmenistan, Qatar, Korea Two: China, United States, Singapore Three: Indonesia Four: Thailand, United Kingdom Six: Japan

2018 Country Areas visited Dates Details Image1 Japan Tokyo 10–12 June Mahathir attend the Nikkei 24th International Conference on the Future of Asia. He paid a courtesy call on Japanese prime minister Shinzo Abe at his office. Mahathir received a unique present from Shinzo Abe.2 Indonesia Jakarta 28–29 June Mahathir arrived Jakarta for a two-day official visit to Indonesia. He and Indonesian president Joko Widodo exploring issues ranging from education for Indonesian children in Malaysia to border negotiations.3 Japan Fukuoka, Oita 7–9 August Mahathir delivered the keynote address at a seminar for future Japanese leaders and visited a training center at JR Kyushu, a railway company that operated the high-speed bullet train. He has received an honorary doctorate from the Ritsumeikan Asia Pacific University. As part of Mahathir's long-term vision for Look East, the governments of Malaysia and Japan are currently in discussions regarding the establishment of a Japanese university campus in Malaysia.4 China Hangzhou, Beijing 17–21 August Mahathir arrived Hangzhou to begin his five-day official visit to China. He met with Chinese premier Li Keqiang and President Xi Jinping.5 Brunei Bandar Seri Begawan 2–3 September Mahathir has arrived Bandar Seri Begawan for a two-day working visit. He met with His Majesty Sultan Haji Hassanal Bolkiah Mu'izzaddin Waddaulah, the Sultan and Yang Di-Pertuan of Brunei Darussalam for talks at Istana Nurul Iman.6 United Kingdom London 22–25 September Mahathir included meetings with captains of industry, key investors, international capital market analysts, and potential new investors based in the United Kingdom (UK) and European Union (EU). At the Imperial College London, he met with James Dyson. Mahathir delivered a keynote address entitled "The Challenge of Good Governance in the Muslim World" at the Oxford Centre for Islamic Studies.7 United States New York 25–29 September Mahathir delivered Malaysia's national statement at the 73rd session of the United Nations General Assembly. He met with British prime minister Theresa May and Iranian president Hassan Rouhani.8 United Kingdom London 30 September – 1 October Mahathir participated in a programme with Lotus Cars, met Malaysians for high-tea, and attended a briefing on debt and equity. The next day, he was deliver a talk titled "Future Democracy in Asia" at Chatham House and attended a briefing session on police and public sector reforms in the UK.9 Indonesia Bali 11 October10 Thailand Bangkok 24–25 October Mahathir make an official visit to Thailand to push forward bilateral ties and the peace process in Southern Thailand that Malaysia has facilitated. After meeting Thai prime minister Prayut Chan-o-cha, Malaysia and Thailand have agreed to expand the scope of bilateral cooperation to contain an insurgency along their shared border after changing peace negotiators.11 Japan Tokyo 5–7 November Mahathir arrived Tokyo for a packed three-day working visit to Japan, his third trip to the country. He was conferred "The Grand Cordon of the Order of the Paulownia Flowers" by the emperor of Japan.12 Singapore Singapore 12–13 November Mahathir was accorded official welcome by Singaporean prime minister Lee Hsien Loong upon his arrival. The two leaders spoke of the strong ties between their two countries. Mahathir joined nine other heads of government for the 33rd ASEAN Summit. He met with Russian President Vladimir Putin for a bilateral talk on the sidelines of the Summit, where they also discussed the trade situation and the Syrian civil war. Singaporean president Halimah Yacob, as the chancellor of the National University of Singapore (NUS), conferred upon him the Honorary Doctor of Laws at a ceremony held in recognition of his outstanding leadership of Malaysia and his enduring contributions to the longstanding bilateral relations between Singapore and Malaysia. The university was his alma mater. Mahathir and his wife Siti Hasmah Mohamad Ali also attended an orchid naming ceremony on the Istana grounds. The orchid, named "Dendrobium Mahathir Siti Hasmah", is a cross between Dendrobium Kiyoshu Blue and Dendrobium Pink Lips.13 Papua New Guinea Port Moresby 17–18 NovemberMahathir led the Malaysian delegation to the 26th APEC Economic Leaders' Meeting (AELM). He met with Canadian prime minister Justin Trudeau and Hong Kong chief executive Carrie Lam. Lam expressed her love for Penang.14 Thailand Bangkok 15–16 DecemberMahathir arrived in Bangkok for a two-day working visit to Thailand, on a second visit to the country in less than three months. He received an honorary doctorate degree in Rangsit University.

2019