Sperwill Ltd (sometimes Sperwill Aviation) was a British aircraft manufacturer based in Bristol and founded by Riann Oliver.

The company specialized in the design and manufacture of paramotors in the form of ready-to-fly aircraft for the US FAR 103 Ultralight Vehicles rules and the European microlight category.

[1] The company seems to have been founded about 2001 and gone out of business in 2009.

[2] The company built a wide range of paramotors noted for their ability to be completely dismantled for ground transport.

Each model used a different engine, while retaining similar frame features.