Joshua Ritchie may refer to:

• Joshua H. Ritchie (born 1938), American-Israeli Rabbi and doctor
• Josh Ritchie, British reality-TV personality

• Adcock, Tony
• AD Condo
• A. D. Condo
• A.D. Condo
• Adcor A-556
• ADCOR A-556 ELITE
• Adcor Defense
• Adcortyl
• Adcote
• Adcote School for Girls
• Ad council (disambiguation)
• AD Cova Lima
• Adcox-Hernandez, Thom
• Adcp
• A. D. Crake
• Adcrocuta
• A.D.C. Viterbese Castrense
• ADCY10 (gene)
• ADCY1 (gene)
• ADCY2 (gene)
• ADCY3 (gene)
• ADCY4 (gene)
• ADCY5 (gene)
• ADCY6 (gene)
• ADCY7 (gene)