An approach for the synthesis of α‐aryl alkylphosphonates based on visible‐light photocatalytic Giese reaction of α‐aryl vinylphosphonates with aliphatic carboxylic acids has been successfully developed. This protocol tolerates a wide range of functional groups and shows broad substrate scope with regard to both the carboxylic acid and vinylphosphonate components. With sequential Giese/hydrolysis reactions