Peter Ross "Ross" Landry is a Canadian retired police officer and politician.
A native of Trenton, Nova Scotia, Landry is a retired police officer, having served in the Royal Canadian Mounted Police.
In December 2008, Landry successfully ran for the Nova Scotia New Democratic Party nomination in the riding of Pictou Centre. Landry was elected in the 2009 provincial election and represented the riding until his defeat in the 2013 provincial election.
Landry was appointed to the Executive Council of Nova Scotia on June 19, 2009 where he served as Minister of Justice and Attorney General of Nova Scotia until October 22, 2013.
On July 13, 2015, Landry announced that he was seeking the New Democratic Party nomination in the Central Nova riding for the 42nd Canadian federal election. He won the nomination on July 26 and finished in third place behind Conservative Fred DeLorey and Liberal Sean Fraser.