The 1978 Italian Indoor Open, also known as the Bologna Open or Bologna WCT, was a men's tennis tournament played on indoor carpet courts that was part of the 1978 Colgate-Palmolive Grand Prix circuit and took place in Bologna, Italy.

It was the fourth edition of the tournament and was held from 20 November through 26 November 1978.

Fifth-seeded Peter Fleming won the singles title and earned $8,600 first prize money.

[3][4] Peter Fleming defeated Adriano Panatta 6–2, 7–6(7–5) Peter Fleming / John McEnroe defeated Jean-Louis Haillet / Antonio Zugarelli 6–1, 6–4