Kenny received 59 votes, with 49 against, in Ireland's 158-member parliament. His minority government rare in Irish politics will survive only with support from the main opposition Fianna Fail party, which abstained today.
Kenny struggled to forge a new coalition after his Fine Gael party retained just 50 seats in the February 26 election. Left-wing Labour, Kenny's previous partner in his 5-year-old government, suffered devastating losses.
To achieve today's breakthrough, Fine Gael won Fianna Fail backing for a compromise program of government, and cut separate policy deals with independent lawmakers, three of whom will gain Cabinet posts. Labour leader Joan Burton called it "a deeply flawed arrangement.