| 1981 Belgian International Championships | ||||
|---|---|---|---|---|
| Date | 8–14 June | |||
| Edition | 10th | |||
| Category | Grand Prix | |||
| Draw | 32S / 16D | |||
| Prize money | $50,000 | |||
| Surface | Clay / outdoor | |||
| Location | Brussels, Belgium | |||
| Venue | Leopold Club | |||
| Champions | ||||
| Singles | ||||
 Marko Ostoja | ||||
| Doubles | ||||
 Ricardo Cano /  Andrés Gómez | ||||
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The 1981 Belgian International Championships was a men's tennis tournament staged at the Leopold Club in Brussels, Belgium that was part of the Grand Prix circuit. The tournament was played on outdoor clay courts and was held from 8 June until 14 June 1981. It was the tenth and last edition of the tournament and third-seeded Marko Ostoja won the singles title.
Finals
Singles
Marko Ostoja defeated 
Ricardo Ycaza 4–6, 6–4, 7–5
- It was Ostoja's only singles title of his career.
Doubles
Ricardo Cano / Andrés Gómez defeated 
Carlos Kirmayr / Cássio Motta 6–2, 6–2
References
- "1981 Brussels – Singles draw". Association of Tennis Professionals (ATP).
- "1981 Brussels – Doubles draw". Association of Tennis Professionals (ATP).
- John Barrett, ed. (1982). Slazengers World of Tennis 1982 : The Official Yearbook of the International Tennis Federation (14th ed.). London: Queen Anne Press. p. 121. ISBN 9780356085968.
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