Ranil Wickremesinghe has undertaken several international visits to strengthen Sri Lanka's foreign relations:

- United Kingdom: He led delegations to Queen Elizabeth II's funeral and Charles III's coronation, enhancing ties with the UK.

- Japan & Singapore: Engaged in official state visits and attended Shinzo Abe's funeral, discussing debt restructuring and inviting leaders to Sri Lanka's 75th Independence Anniversary.

- Philippines: Attended the Asian Development Bank Governors’ meeting and conferred with President Bongbong Marcos.

- Egypt: Delivered a special address at the 2022 United Nations Climate Change Conference.

- India: Met with the Indian President and Prime Minister, discussing bilateral relations.

- Cuba: Addressed the G77 summit and met with the Cuban President.

- United States: Spoke at the UN General Assembly and engaged with multiple international leaders.

- Germany: Met the German Chancellor and participated in the Berlin Global Dialog.

- China: Met the Chinese President and attended the One Belt One Road meeting, discussing strategic partnerships.

These trips are pivotal in diplomatic efforts, economic negotiations, and enhancing Sri Lanka's image on the world stage.