Paul Raymond Martineau PC QC KCSG (April 10, 1921 – March 19, 2010) was a Canadian politician, lawyer, crown attorney, and judge.
The son of Alphonse Martineau and Lucienne Lemieux, Martineau grew up in the Quebec portion of the Ottawa Valley. He received a Bachelor of Arts degree in 1941 from the University of Ottawa. He served for four years in the Royal Canadian Air Force during World War II and was subsequently president of the Quebec branch of the Royal Canadian Legion. After the war, he received a Bachelor of Civil Law degree from the Université de Montréal. He was called to the Bar of Quebec in 1949. A private practice lawyer from 1950 to 1980, he was a crown attorney from 1950 to 1958.
In 1946, he married Helene Neclaw. The tie was settled by the casting vote of the Returning Officer. In Opposition, he played a significant role in the Great Flag Debate of 1964, when he broke with Diefenbaker in order to support the adoption of the Maple Leaf flag.
:The new flag is the symbol of the future because it expresses unity, that unity to which so many of us have paid lip service during the course of this debate. I believe that in the maple leaf flag Canadians of whatever origin or background may find something in common. I believe this maple leaf flag will express for Canadians, in their own undemonstrative and taciturn way, the firm conviction that Canadians want to live together, work together, and build a worthwhile nation. If this distinctive flag can be accepted by the country without lasting bitterness and acrimony, then Canadians will have gone a long way to prove to the world that a nation such as ours, born in strife, diverse in its origins, speaking two languages and being the embodiment of two great cultures, can survive and prosper....
Journalist Peter C. Newman described Martineau's intervention as "the best speech of the entire debate."