Minority (27) Vacant (1) The Osaka Prefectural Assembly (大阪府議会, Ōsaka-fu gikai) is the legislature of Osaka Prefecture.

As in all prefectures, it is elected to four-year terms by single non-transferable vote in multi- and single-member districts and is responsible for enacting and amending prefectural by-laws, approving the budget and important administrative appointments in the prefectural government, including the prefecture's vice governors.

The Osaka Restoration Association, retained its position as the largest party in the assembly, reclaimed an outright majority, as it had after the April 2011 election.

Most districts cover one municipality or one ward of a designated major city (Osaka and Sakai), but some cover several wards or municipalities.

The nine towns and one village within the prefecture are referred to by the district that they belong to.