Decamillionaires: Definition, Examples & Wealth Insights


Decamillionaire is a term used to describe individuals with a net worth exceeding 10 million in a given currency, such as U.S. dollars, euros, or pounds sterling. This article explores the origins of the term, its significance in categorizing wealth, and how it differs from other wealth classifications like millionaires, multimillionaires, and high-net-worth individuals.

What is a decamillionaire?

A decamillionaire, as the name suggests, is a person whose net worth surpasses 10 million units of a specific currency, most commonly U.S. dollars, euros, or pounds sterling. The term “decamillionaire” is derived from two components: “deca” or “deka,” a Greek term meaning ten, and “millionaire,” referring to someone with a net worth of one million units of currency.

When combined, “decamillionaire” signifies someone who possesses wealth equal to or greater than ten million, which is calculated as 10 x 1,000,000 = 10,000,000. This term serves as a benchmark for measuring wealth in countries whose currencies have similar values to the U.S. dollar, euro, or British pound sterling.

Understanding decamillionaire

While a person with 2.5 million in a specific currency may be labeled as a multimillionaire, the term “decamillionaire” is reserved for those with 10 million. The difference between the two designations is substantial: the former has ‘2.5 times a million,’ while the latter boasts ’10 times a million,’ representing a significant disparity in wealth.

Decamillionaires and net worth

Wealthy individuals are often categorized as “millionaires” or “multimillionaires,” which can be overly broad for precise wealth assessment. To address this, some wealth management firms employ more refined categories like “high-net-worth,” “very-high-net-worth,” or “ultra-high-net-worth.”

For simplicity, let’s use U.S. dollars as a guide for these categories:


A high-net-worth individual is someone with at least $1 million in investable assets, excluding their primary residence. Definitions and thresholds may vary among banks and wealth management firms, but this is a common benchmark.


Very-high-net-worth individuals possess at least $5 million in investable assets, sometimes referred to as “pentamillionaires.”


An ultra-high-net-worth individual holds at least $30 million to invest. In the United States, there were just over 73,000 ultra-high-net-worth individuals as of 2016.

Decamillionaire use

Given the broad definitions of these categories, terms like “decamillionaire” play a crucial role in offering a more precise depiction of individual wealth. As the number of millionaires worldwide continues to rise and inflation affects the purchasing power of their wealth, terms like “decamillionaire” help differentiate simple millionaires from those with significantly greater wealth.

Pros and cons of being a decamillionaire

Weigh the risks and benefits

Here is a list of the benefits and drawbacks to consider when aspiring to become a decamillionaire.

  • Financial security
  • Investment opportunities
  • Philanthropy
  • Increased financial responsibility
  • Privacy concerns
  • Managing wealth complexity

Examples of decamillionaires

Decamillionaires come from various backgrounds and have achieved their wealth through different means. Here are some illustrative examples:

1. Tech titans

In the world of technology, individuals like Elon Musk, founder of SpaceX and Tesla, and Jeff Bezos, the brains behind Amazon, are quintessential decamillionaires. Their innovative ventures and strategic investments have propelled them to this elite status.

2. Entertainment moguls

Hollywood stars like George Lucas, creator of the “Star Wars” franchise, and Oprah Winfrey, media mogul and philanthropist, have amassed fortunes that extend into the decamillions. Their influence in the entertainment industry and smart financial decisions have contributed to their wealth.

3. Real estate tycoons

Real estate magnates such as Donald Trump and Larry Ellison have leveraged their expertise in property development and investment to become decamillionaires. Their portfolios encompass luxury properties, resorts, and commercial real estate.

Subcategories of decamillionaires

Decamillionaires can further be categorized based on the sources of their wealth and their financial goals:

1. Decamillionaire investors

This group primarily consists of individuals who have accumulated their wealth through savvy investments in stocks, bonds, real estate, and startups. They focus on growing their wealth through well-informed financial decisions.

2. Decamillionaire entrepreneurs

Entrepreneurial decamillionaires have founded and scaled successful businesses. They include startup founders, CEOs of established companies, and those who’ve sold their businesses for substantial sums.

3. Decamillionaire philanthropists

Some decamillionaires dedicate a significant portion of their wealth to philanthropic endeavors. They establish foundations and donate generously to causes close to their hearts, leaving a lasting impact on society.


Becoming a decamillionaire is a significant financial achievement that reflects substantial wealth. While it offers numerous advantages, such as financial security and investment opportunities, it also comes with added responsibilities and challenges, including privacy concerns and managing complex wealth. Understanding the nuances of wealth classification, like decamillionaire, can aid individuals in setting and achieving their financial goals.

Frequently Asked Questions

What is the significance of being a decamillionaire?

Being a decamillionaire signifies substantial wealth, with a net worth exceeding 10 million units of a specific currency. It represents financial success and the ability to pursue various opportunities and lifestyles.

How does a decamillionaire differ from a millionaire or multimillionaire?

A decamillionaire surpasses both millionaires and multimillionaires in terms of wealth. While a millionaire has a net worth of one million units of currency, a decamillionaire possesses wealth equal to or greater than ten million, reflecting a significant difference in financial status.

What are the advantages of categorizing wealth into subcategories like decamillionaire?

Categorizing wealth into subcategories like decamillionaire allows for more precise assessment of an individual’s financial standing. It helps differentiate those with substantial wealth from simple millionaires and provides a clearer picture of financial diversity in society.

What challenges do decamillionaires face?

Decamillionaires face various challenges, including increased financial responsibilities, privacy concerns, and the complexity of managing substantial wealth. Balancing these challenges while enjoying the benefits of wealth can be demanding.

Can someone become a decamillionaire through investment alone?

Yes, it is possible to become a decamillionaire through strategic investments in stocks, bonds, real estate, startups, and other asset classes. Many decamillionaires have grown their wealth by making informed financial decisions and building diversified investment portfolios.

What role does philanthropy play in the lives of decamillionaires?

Philanthropy often plays a significant role in the lives of decamillionaires. Many choose to dedicate a substantial portion of their wealth to charitable causes, establishing foundations, and making generous donations to make a positive impact on society.

Key takeaways

  • A decamillionaire is an individual with a net worth exceeding 10 million units of a specific currency.
  • Distinct categories like high-net-worth, very-high-net-worth, and ultra-high-net-worth exist to differentiate wealth levels.
  • Decamillionaires enjoy financial security and investment opportunities but also face increased financial responsibility and privacy concerns.
View article sources
  1. Definition, What is Decamillionaire, Advantages of …– ClearTax
  2. How Do I Become a Decamillionaire? The Ramsey Show … – Apple
  3. Who is a Decamillionaire? | Definition, Tips on How to … – Khatabook