Ashworth joins Tesco.com from Woolworths where he has worked as supply chain director for ten years.
His appointment comes as Tesco strengthens its online business. In February it opened its first Tesco.com store in Croydon, south London, laid out exactly like a supermarket for staff to pick goods for online shopping orders.
Analysts have predicted that Tesco will also continue to invest in its non food offer. The company is expected to launch a home-shopping offer for non food later this year.
A spokeswoman for Tesco said: "We welcome Neil to Tesco. We are always keen to recruit good people to help us strengthen our non food offer."