Mechain may refer to:

• Mechain, a cantref in the Kingdom of Powys
• Gwerful Mechain, a female Welsh poet of the later Middle Ages, from Mechain
• Pierre Méchain, a French astronomer

• Angelo Rizzoli
• Angelo Rizzuto
• Angelo Rocca
• Angelo Rodriguez High School
• Angelo Rodriguez Lacuesta
• Angelo Roncallo
• Angelo Rossi (musician)
• Angelo Rossitto
• Angelo Rotta
• Angel Orsini
• Angelo Ruffini
• Angelo Ruggiero
• Angelos
• Angelo Sampaio Benedetti
• Angelo San Raffaele, Venice
• Angelo Sanudo
• Angelosaurus
• Angelo Saviano
• Angelo Savoldi
• Angelo Schiavio
• Angelo's Civita Farnese
• Angelo secchi
• Angelos Messaris
• Angelo Snipes
• Angelo Solimena