SH8 may refer to:

India State Highway 8 (Karnataka) State Highway 8 (Kerala) or Main Eastern Highway State Highway 8 (Madhya Pradesh) State Highway 8 (West Bengal) SH 8, a state highway in Bihar

New Zealand State Highway 8 (New Zealand)

United States Colorado State Highway 8 Idaho State Highway 8 Oklahoma State Highway 8 Texas State Highway 8

See also List of highways numbered 8