The 1978 Keith Prowse International, also known as the Chichester International, was a women's tennis tournament played on outdoor grass courts at Oaklands Park in Chichester in England.

The event was part of the A[a] category of the 1978 Colgate Series.

It was the eighth edition of the tournament and was held from 12 June through 16 June 1978.

[2] First-seeded Evonne Goolagong Cawley won the singles title and earned $6,000 first-prize money.

[2][1] Evonne Goolagong Cawley defeated Pam Teeguarden 6–4, 6–4 Pam Shriver / Janet Newberry defeated Michelle Tyler / Yvonne Vermaak 3–6, 6–3, 6–4