| Election Name: | 1991 Sheffield City Council election |
| Country: | England |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 1990 Sheffield City Council election |
| Previous Year: | 1990 |
| Next Election: | 1992 Sheffield City Council election |
| Next Year: | 1992 |
| Seats For Election: | 30 of 87 seats to Sheffield City Council |
| Majority Seats: | 44 |
| Election Date: | 2 May 1991 |
| Party1: | Labour Party (UK) |
| Seats1: | 23 |
| Seat Change1: | 1 |
| Party2: | Conservative Party (UK) |
| Seats2: | 4 |
| Seat Change2: | 1 |
| Party3: | Liberal Democrats (UK) |
| Seats3: | 3 |
| Seat Change3: | 1 |
| Map Size: | 400px |
| Majority party | |
| Posttitle: | Majority party after election |
| Before Election: | Labour Party (UK) |
| After Election: | Labour Party (UK) |
Elections to Sheffield City Council were held on 2 May 1991. One third of the council was up for election. Since the previous election, Richard Old had defected from the Conservatives, sitting as an Independent Conservative. His failure to win re-election for the Ecclesall ward returned them to 11 seats.
|- style="background-color:#F9F9F9"! style="background-color: " || Conservative Councillor Against Student Games| align="right" | 0| align="right" | 0| align="right" | 1| align="right" | -1| align="right" | 0.0| align="right" | 0.5| align="right" | 711| align="right" | N/A|-|- style="background-color:#F9F9F9"! style="background-color: " || Wealth Redistribution| align="right" | 0| align="right" | 0| align="right" | 0| align="right" | 0| align="right" | 0.0| align="right" | 0.1| align="right" | 116| align="right" | ±0.0|-
This result had the following consequences for the total number of seats on the Council after the elections:
| valign=top colspan="2" style="width: 230px" | Party | valign=top style="width: 30px" | Previous council | valign=top style="width: 30px" | New council |
|---|---|---|---|---|---|
| Labour | 69 | 70 | |||
| Conservatives | 10 | 11 | |||
| Liberal Democrats | 7 | 6 | |||
| Conservative Councillor Against Student Games | 1 | 0 | |||
| Total | 87 | 87 | |||
| Working majority | |||||
Elsie Smith was a sitting councillor for Handsworth ward
Cliff Godber was a sitting councillor for Beauchief ward
|- style="background-color:#F9F9F9"! style="background-color: " || Conservative Councillor Against Student Games| Richard Old*| align="right" | 711| align="right" | 9.9| align="right" | +9.9|-Richard Old was previously elected as a Conservative councillor
Roy Hattersley was a sitting councillor for Darnall ward
|- style="background-color:#F9F9F9"! style="background-color: " || Wealth Redistribution| Simon Rawlins| align="right" | 116| align="right" | 3.4| align="right" | +3.4|-