Ammophila ferruginosa is a species of thread-waisted wasp in the family Sphecidae. It is one of over sixty species in the genus Ammophila found in North America. Like other members of this genus, it is a solitary wasp that provisions underground nests with paralyzed caterpillars as food for its larvae. The species was described by Cresson in 1865 and is recorded from North America, with specific distribution records from Canada including Alberta.