| Election Name: | 2021 West Sussex County Council election |
| Country: | West Sussex |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 2017 West Sussex County Council election |
| Previous Year: | 2017 |
| Next Election: | 2025 United Kingdom local elections |
| Next Year: | 2025 |
| Seats For Election: | All 70 seats to West Sussex County Council |
| Majority Seats: | 36 |
| Election Date: | 6 May 2021 |
| Party1: | Conservative Party (UK) |
| Last Election1: | 56 |
| Seats1: | 48 |
| Seat Change1: | 8 |
| Party2: | Liberal Democrats (UK) |
| Last Election2: | 9 |
| Seats2: | 10 |
| Seat Change2: | 1 |
| Party3: | Labour Party (UK) |
| Last Election3: | 5 |
| Seats3: | 9 |
| Seat Change3: | 4 |
The West Sussex County Council election took place on 6 May 2021 alongside other local elections. All 70 seats to West Sussex County Council were elected.[1] Labour gained 4 seats in the Worthing division, while the Green Party and Local Alliance gained their first ever seats on the council.[2]
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