The Rohingya are a Muslim minority in predominantly Buddhist Myanmar that has been systematically denied the most elemental rights: citizenship, freedom of worship, education, marriage and travel. Tens of thousands of the Rohingya were driven from their homes by violence in 2012; last year many tried to flee persecution and deprivation in desperate sea voyages.

Daw Aung San Suu Kyi — Myanmar’s leader and Nobel Peace Prize laureate — does not want to call them Rohingya, the name they use, because nationalist Buddhists want to perpetuate the myth that they are “Bengalis” who don’t belong in Myanmar. She has also asked the United States ambassador not to use the term. Her advice is wrong and deeply disappointing. The Rohingya are every bit as Burmese as she is.

There are many possible reasons Ms. Aung San Suu Kyi — whose 15 years under house arrest made her one of the world’s best known and most respected political prisoners — might be reluctant to publicly embrace the Rohingya cause. It has been barely a month since she became leader of Myanmar’s first democratically elected government since 1962, with the title of state counselor, and she no doubt fears antagonizing the Buddhist nationalists who angrily demonstrated outside the United States Embassy in late April after the embassy referred to the “Rohingya community” in a letter of condolence for Rohingya victims of a boat sinking.