Japan, with its population of 127,185,332, has the highest national debt in the world at 234.18% of its Gross Domestic Product (GDP), followed by Greece at 181.78%. Japan's national debt currently sits at ¥1,028 trillion ($9.087 trillion USD), as of 2019.

Gross Domestic Product (GDP) is the broadest quantitative measure of a nation's total economic activity. More specifically, GDP represents the monetary value of all goods and services produced within a nation's geographic borders over a specified period of time.

After the stock market crashed in Japan, the government bailed out banks and insurance companies and provided them with low-interest credit. Banking institutions had to be consolidated and nationalized after a period of time and other fiscal stimulus initiatives were used to help reboot the struggling economy.

Unfortunately, these actions caused Japan’s debt level to skyrocket. Russia’s debt ratio is one of the lowest in the world at 19.48% of its GDP.

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