Ireland's Michael D Higgins: 5 feet 3 inches (160 centimeters).
The President of Ireland's smaller stature is exaggerated when he hangs out with his giant dogs, Bród and Síoda.
Source: DailyEdge.ie
North Korea's Kim Jong-un: Between 5 feet 7 inches (170 centimeters) and 5 feet 4 inches (163 centimeters).
The North Korean leader is often reported to be 5 feet 7 inches tall, but it is unclear where that information comes from.
He appears to be shorter than South Korean President Moon Jae-in (pictured above), who is 5 feet 6 inches, but experts also think that Kim is often pictured wearing shoes that make him seem taller, which could mean he could be as short as 5 feet 4 inches.
Angela Merkel: 5 feet 5 inches (165 centimeters.)
The Chancellor of Germany is still known for staring down world leaders much larger than her, including her face off with President Trump in the now notorious picture above.
Source: The Guardian
China's Xi Jinping: 5 feet 9 inches (175 centimeters).
China's President is taller than all of his immediate predecessors.
Canada's Justin Trudeau: 6 feet 2 inches (188 centimeters).
The Canadian stands at 6 feet 2 inches, but many have pointed out that he looks taller than US President Donald Trump even though the Trump is listed as being taller.
The US' Donald Trump: 6 feet 3 inches (191 centimeters), or 6 feet 2 inches (188 centimeters).
During his presidency, Trump has frequently mocked other politicians for being shorter than him.
Trump's official medical report listed him as 6 feet 3 inches, but his earlier driving license had him listed as 6 feet 2 inches, the UK's The Guardian newspaper reported.
The Guardian also highlighted photographs that showed Trump standing next to other people who were 6 feet 3 inches, and looking slightly shorter.
Serbia's Aleksandar Vučić: 6 feet 6 inches (198 centimeters)
While Serbia may not have the global financial and political clout of countries like Russia and the US, it does boast probably the tallest leader.
President Aleksandar Vučić has spearheaded the country's efforts to join the European Union, even securing the support of US Vice President Mike Pence during a recent visit.
Source: Financial Times
