As of 2021, the person with the highest net worth in the world is Elon Musk, with an estimated net worth of over $200 billion USD. Musk is a tech entrepreneur who co-founded PayPal and has since gone on to found companies such as SpaceX, Tesla, Neuralink, and The Boring Company.

Musk’s net worth has seen a significant increase in recent years due to the success of Tesla, which is now the world’s most valuable automaker. In addition to his work with Tesla, Musk has also made headlines for his ambitious plans to colonize Mars through his company SpaceX.
Prior to Musk, the person with the highest net worth was Amazon founder Jeff Bezos, who has an estimated net worth of around $160 billion USD. Bezos founded Amazon in 1994 and has since built it into one of the world’s largest e-commerce companies. In addition to Amazon, Bezos owns The Washington Post and Blue Origin, a space exploration company.
Other billionaires with high net worths include Bernard Arnault, the CEO of luxury goods conglomerate LVMH, with an estimated net worth of over $150 billion USD, and Bill Gates, the co-founder of Microsoft, with an estimated net worth of over $130 billion USD.
It’s worth noting that while net worth is often used as a measure of a person’s wealth, it does not necessarily equate to liquid assets or actual cash holdings. Net worth is calculated by subtracting a person’s liabilities from their assets, which can include things like stocks, real estate, and other investments. Therefore, a person’s net worth may be high but they may not necessarily have large amounts of cash on hand.
Overall, the list of the world’s wealthiest individuals is constantly changing as stock prices fluctuate and business ventures succeed or fail. However, it is clear that technology entrepreneurs and those in the luxury goods sector tend to dominate the list of billionaires with the highest net worths.