Usa-Places.com has listed approx 10 Pizza restaurants in Ottawa. Some of the Top rated Pizza restaurants in Ottawa are- Bianchi's Pizza, R Grotto Ristorante, Rosati's Pizza and Sports Pub, Sam's Pizza, Iniga Pizzeria Napoletana, Little Caesars Pizza, Papa John's Pizza, Alfano's Pizzeria, Bianchi's Pizza & Pizzas By Marchelloni - Ottawa Il.