Andrei Alexandrescu is a Romanian-American C++ and D language programmer and author. He is particularly known for his pioneering work on policy-based design implemented via template metaprogramming. These ideas are articulated in his book Modern C++ Design and were first implemented in his programming library, Loki. He also implemented the "move constructors" concept in his MOJO library. He contributed to the C/C++ Users Journal under the byline "Generic<Programming>".

Romanian Americans are Americans who have Romanian ancestry. According to the 2017 American Community Survey, 478,278 Americans indicated Romanian as their first or second ancestry, however other sources provide higher estimates, which are most likely more accurate, for the numbers of Romanian Americans in the contemporary United States; for example, the Romanian-American Network supplies a rough estimate of 1.2 million who are fully or partially of Romanian ethnicity. There is also a significant number of people of Romanian Jewish ancestry, estimated at about 225,000.