According to the provided reference, Elon Musk was the richest CEO in the world as of March 10, 2023.
Elon Musk, known for leading companies like Tesla and X (formerly Twitter), frequently sees fluctuations in his net worth, causing him to move in and out of the top position among the world's wealthiest individuals and CEOs. The reference notes that despite the impact of his acquisition of Twitter on his net worth, he had returned to the number one spot for richest CEO by March 10, 2023, according to Forbes data cited in the article.