What is the name of Mexican rice milk?

There isn't a specific name for Mexican rice milk. However, it would likely be called "leche de arroz" in Spanish, which translates directly to "rice milk."

It's important to note that while rice milk is a popular beverage worldwide, including in Mexico, it's not necessarily a traditional Mexican drink. Mexican cuisine is rich in various milk-based beverages, such as horchata (made from rice, almonds, and spices) and atole (a thick, warm drink made with cornmeal).