The top 10 cities with the most luxury condominiums can vary depending on factors such as market conditions, real estate trends, and the definition of “luxury.” However, here is a list of ten cities known for their prominent luxury condominium markets:

1. New York City, United States
2. Miami, United States
3. London, United Kingdom
4. Dubai, United Arab Emirates
5. Hong Kong, China
6. Singapore
7. Toronto, Canada
8. Paris, France
9. Tokyo, Japan
10. Los Angeles, United States

Please note that this list is not exhaustive and can change over time. Additionally, the ranking may be subjective and can vary depending on different sources and criteria.