1978 Rothmans Canadian Open

The 1978 Rothmans Canadian Open was a tennis tournament played on outdoor clay courts at the National Tennis Centre in Toronto in Canada that was part of the 1978 Colgate-Palmolive Grand Prix and of the 1978 WTA Tour. The tournament was held from August 14 through August 20, 1978.

Men's singles
🇺🇸 Eddie Dibbs defeated 🇦🇷 José Luis Clerc 5–7, 6–4, 6–1
 * It was Dibbs' 4th title of the year and the 18th of his career.

Women's singles
Regina Maršíková defeated Virginia Ruzici 7–5, 6–7(9–11), 6–2
 * It was Maršíková's 2nd title of the year and the 3rd of her career.

Men's doubles
🇵🇱 Wojciech Fibak / Tom Okker defeated  Colin Dowdeswell /  Heinz Günthardt 6–3, 7–6
 * It was Fibak's 6th title of the year and the 33rd of his career. It was Okker's 6th title of the year and the 77th of his career.

Women's doubles
Regina Maršíková / 🇺🇸 Pam Teeguarden defeated 🇦🇺 Chris O'Neil / 🇺🇸 Paula Smith 7–5, 6–7, 6–2
 * It was Maršíková's 3rd title of the year and the 4th of her career. It was Teeguarden's only title of the year and 15th of her career.