Marcelo Ríos defeated Àlex Corretja in the final, 6–4, 6–3, 6–3 to win the singles tennis title at the 1997 Monte Carlo Open.
Carlos Costa was the defending champion, but the second seeded Spaniard lost in the first round to Marcelo Filippini because he had to retire. Karel Nováček won in the final 7–5, 6–4, 7–6(9–7) against Richard Fromberg and captured his third title in Hilversum.
Jim Pugh and Blaine Willenborg were the defending champions, but Willenborg did not participate this year. Pugh partnered Rick Leach
Thomas Muster was the defending champion, but lost in the second round to Albert Portas.
Thomas Muster was the defending champion, but chose to compete in Stuttgart at the same week.
Paolo Canè and Simone Colombo were the defending champions, but Canè did not compete this year. Colombo teamed up with Francesco Cancellotti and lost in the quarterfinals to Josef Čihák and Cyril Suk.
The defending champion was Joakim Nyström but he lost in the quarterfinals to the seventh seeded, Marcelo Filippini from Uruguay, who went on to win the singles title.
Jakob Hlasek and Tomáš Šmíd were the defending champions but Hlasek did not compete this year, as he decided to focus on the singles tournament. Šmíd teamed up with Jan Gunnarsson and lost in the first round to tournament runners-up Omar Camporese and Claudio Mezzadri.
Sergio Casal and Emilio Sánchez were the defending champions but none competed this year.
Carlos di Laura and Marcelo Filippini were the defending champions, but none competed this year.
Thomas Muster was the defending champion, but lost in the semifinals to Fabrice Santoro.
Richard Fromberg was the defending champion, but did not compete this year.
Horacio de la Peña was the defending champion, but lost in the third round to Francisco Clavet.
Albert Costa was the defending champions, but chose to compete at Cincinnati in the same week.
Dimitri Poliakov was the defending champion, but did not compete this year.
Jan Gunnarsson and Joakim Nyström were the defending champions, but Nyström did not compete in this year. Gunnarsson teamed up with Mats Wilander and lost in the quarterfinals to Brett Dickinson and Roberto Saad.
Thomas Muster was the defending champion but chose to compete at Cincinnati in the same week, losing in the first round to Mark Woodforde.
Goran Ivanišević was the defending champion but chose to compete at Los Angeles during the same week, reaching the semifinals.
Marcelo Filippini was the defending champion, but lost in the second round to Nicklas Kulti.
Martín Jaite was the defending champion, but did not compete this year.
Carlos di Laura 
Marcelo Filippini 
Alberto Mancini 
