SDQ may refer to:

• Las Américas International Airport, an international airport located in Punta Caucedo, near Santo Domingo and Boca Chica in the Dominican Republic
• Strengths and Difficulties Questionnaire, a psychological test administered to screen for potential psychopathology

• Esther de Gélieu
• Esther De Jong
• Esther de Lange (cricketer)
• Esther de Mezerville
• Esther De Mezerville
• Esther Dominguez
• Esther Dominguez Zurita
• Esther Domínguez
• Esther Domínguez Zurita
• Esther (drama)
• Esther Dzifa Ofori
• Esther Eba'a Mballa
• Esther E. Baldwin
• Esther Eden
• Esther Eidinow
• Esther Eillam
• Esther Elizabeth Bliss
• Esther Elizabeth Burrows
• Esther Ellen Ongley
• Esther Erb
• Esther Ewald
• Esther E. Wood
• Esther Fahey
• Esther Fahmi Wisa
• Esther Fahmy Wissa