Vienna Inner East (German: Wien Innen-Ost), also known as Electoral District 9C (German: Wahlkreis 9C), is one of the 39 multi-member regional electoral districts of the National Council, the lower house of the Austrian Parliament, the national legislature of Austria.

[5] Vienna Inner East currently elects three of the 183 members of the National Council using the open party-list proportional representation electoral system.

[9] In the first stage, seats are allocated to parties (lists) at the regional level using a state-wide Hare quota (wahlzahl) (valid votes in the state divided by the number of seats in the state).

[10][11] Electors may cast one preferential vote for individual candidates at the regional, state and federal levels.

[11][12] At the regional level, candidates must receive preferential votes amounting to at least 14% of the valid votes cast for their party to over-ride the order of the party list (10% and 7% respectively for the state and federal levels).