The Ontario Liberal Party, led by Mitchell Hepburn, defeated the governing Ontario Conservative Party, led by George Stewart Henry. Hepburn was assisted by Harry Nixon's Progressive bloc of MLAs who ran in this election as Liberal-Progressives on the understanding that they would support a Hepburn led government. Nixon, himself, became a senior cabinet minister in the Hepburn government.
The Liberals won a majority in the Legislature, while the Conservatives lost four out of every five seats that they had won in the previous election.
The Co-operative Commonwealth Federation won a seat in the Ontario Legislature for the first time with the election of Samuel Lawrence in Hamilton East. Earl Hutchinson of Kenora is re-elected as a Labour MLA but dies shortly after the election. A by-election returns Peter Heenan, a former Labour MLA in the riding, running this time as a Liberal.
|Party||Leader||1929||Elected||% change||Popular vote|
|%||change||Liberal||Mitchell Hepburn||13||65||align="right"||50.4%||align="right"||Conservative||George Stewart Henry||90||17||-81.1%||39.8%||-19.0%||Liberal-Progressive**||Harry Nixon||1||4||align="right"||Co-operative Commonwealth||*||1||*||7.0%||*||Labour||1||1||-||United Farmers||Farquhar Oliver||1||1||-||Independent||-||1||Progressive**||4||*||-100%||*||*||Conservative Independent||2||-||-100%|
* Party did not nominate candidates.
** 4 Progressives and 1 Liberal-Progressive were elected in 1929. In the 1934 election, Progressive leader Harry Nixon led the party into a coalition with the Liberals under the Liberal-Progressive label. While there are three more Liberal-Progressives in 1934 than in 1929 there was a net loss of one seat if one adds in the Progressives elected in 1929.