| Walter Lea | |
| Office: | 17th Premier of Prince Edward Island |
| Predecessor1: | Albert C. Saunders |
| Successor1: | James D. Stewart |
| Monarch1: | George V |
| Lieutenant Governor1: | Frank Richard Heartz Charles Dalton |
| Term Start1: | May 20, 1930 |
| Term End1: | August 29, 1931 |
| Term Start2: | August 15, 1935 |
| Term End2: | January 10, 1936 |
| Predecessor2: | William J. P. MacMillan |
| Successor2: | Thane A. Campbell |
| Monarch2: | George V |
| Lieutenant Governor2: | George DesBrisay DeBlois |
| Office3: | Leader of the Prince Edward Island Liberal Party |
| Predecessor3: | Albert C. Saunders |
| Successor3: | Thane Campbell |
| Term Start3: | May 20, 1930 |
| Term End3: | January 10, 1936 |
| Office4: | MLA (Councillor) for 4th Prince |
| Predecessor4: | Michael C. Delaney |
| Successor4: | John H. Myers |
| Term Start4: | September 16, 1915 |
| Term End4: | July 26, 1923 |
| Predecessor5: | John H. Myers |
| Successor5: | Horace Wright |
| Term Start5: | June 25, 1927 |
| Term End5: | January 10, 1936 |
| Birth Date: | 10 February 1874 |
| Birth Place: | Tryon, Prince Edward Island |
| Death Place: | Charlottetown, Prince Edward Island |
| Nationality: | Canadian |
| Party: | Liberal |
| Relations: | William C. Lea (father) |
| Children: | 5 |
| Residence: | Victoria, Prince Edward Island |
| Occupation: | Farmer and livestock breeder |
| Profession: | Politician |
| Cabinet: | Minister of Agriculture (1919–1923) Commissioner of Agriculture and Provincial Secretary-General (1927–1930) |
Walter Maxfield Lea (February 10, 1874 - January 10, 1936) was a Prince Edward Island politician.
A farmer and livestock breeder by profession, Lea was born in Tryon, the son of William C. Lea and Annie Murphy.[1] He was elected to the provincial House of Assembly in 1915 as a Liberal and became commissioner of agriculture in 1919. In 1930 Lea became premier when his predecessor was appointed to the Supreme Court of Prince Edward Island but the Great Depression took a toll on the government's popularity and he lost the election the next year to the rival Conservative Party of Prince Edward Island.
Lea rebuilt the party while in opposition and in 1935 the Liberals won all 30 seats in the legislature, the first time such a thing had ever happened in the British Empire. Lea had been ill during the campaign, however, and died in office at the Prince Edward Island Hospital in Charlottetown[1] on January 10, 1936.
He married Helena Esma Maude Mary Rodgerson in 1899. His daughter Marion married Walter Fitz-Alan Stewart.[1]