Yes, you can use your debit card in the Dominican Republic, but you should be prepared for high fees and limited acceptance in rural areas. While major resorts, upscale restaurants, and shopping malls in Santo Domingo or Punta Cana accept Visa and Mastercard, the DR remains a heavily cash-based society for daily transactions like taxis, fruit stands, and local eateries. Using a debit card at an ATM is the most common way to get Dominican Pesos (DOP), but be aware that local ATMs often charge transaction fees ranging from $10 to $20 USD per withdrawal, in addition to whatever "foreign transaction fee" your home bank might charge. It is highly recommended to use ATMs located inside reputable banks or grocery stores for better security. Always notify your bank of your travel dates to prevent your card from being frozen for "suspicious activity," and try to carry small denominations of US Dollars as a backup, as they are widely accepted in tourist hubs.