Stage 4 Giro d'Italia 2021, Italy
- Date
- 11 May
- Distance
- 187 km
- Type
- Hills
- Starters
- 184
Joseph DOMBROWSKI won in 4:58:38, 0:13 ahead of DE MARCHI.
| 1 |  J. DOMBROWSKI | 4:58:38 |
| 2 |  A. DE MARCHI | +0:13 |
| 3 | F. FIORELLI | +0:27 |
Stage result
183| # | Rider | Time | GC | Bonus | UCI pts |
|---|---|---|---|---|---|
| 1 | J. DOMBROWSKIUAE Team Emirates | 4:58:38 | +0:22 | −10s | 100 |
| 2 | A. DE MARCHIIsrael Start-Up Nation | +0:13 | 13:50:44 | −6s | 40 |
| 3 | F. FIORELLIBardiani CSF Faizane' | +0:27 | +14:12 | −4s | 20 |
| 4 |  L. VERVAEKEAlpecin-Fenix | +0:29 | +0:42 | 12 | |
| 5 |  J. TRATNIKBahrain Victorious | s.t. | +9:56 | 4 | |
| 6 |  A. VALTERGroupama - FDJ | +0:44 | +1:00 | ||
| 7 |  N. EDETCofidis | +0:49 | +1:15 | ||
| 8 |  N. OLIVEIRAMovistar Team | +0:57 | +0:48 | −1s | |
| 9 |  R. TAARAMÄEIntermarché - Wanty - Gobert Matériaux | +1:33 | +1:47 | −3s | |
| 10 |  C. JENSENTeam Bikeexchange | +1:36 | +11:14 | −2s | |
| 11 |  E. BERNALIneos Grenadiers | +1:37 | +1:39 | ||
| 12 | G. CICCONETrek - Segafredo | s.t. | +1:56 | ||
| 13 |  A. VLASOVAstana - Premier Tech | s.t. | +1:24 | ||
| 14 |  M. LANDABahrain Victorious | s.t. | +1:49 | ||
| 15 |  H. CARTHYEF Education - Nippo | s.t. | +1:38 |
Teams
10 of 23 scored · 7–8 riders each| # | Team | |||
|---|---|---|---|---|
| 1 | UAE Team Emirates | 100 | 1 | 1 |
| 2 | Israel Start-Up Nation | 60 | 0 | 1 |
| 3 | Bardiani CSF Faizane' | 20 | 0 | 1 |
| 4 | Alpecin-Fenix | 12 | 0 | 0 |
| 5 | Bahrain Victorious | 4 | 0 | 0 |
| 6 | Groupama - FDJ | 0 | 0 | 0 |
| 7 | Cofidis | 0 | 0 | 0 |
| 8 | Movistar Team | 0 | 0 | 0 |
| 9 | Intermarché - Wanty - Gobert Matériaux | 0 | 0 | 0 |
| 10 | Team Bikeexchange | 0 | 0 | 0 |