1977 Monte Carlo WCT

{{TennisEventInfo|1977|Monte Carlo Open|

| date= 4–10 April

| edition=72nd

| category=World Championship Tennis (WCT)

| prize_money=$100,000

| draw=16S / 8D

| surface=Clay / outdoor

| location=Roquebrune-Cap-Martin, France

| venue=Monte Carlo Country Club

| champs={{flagicon|SWE}} Björn Borg {{cite web|title=1977 Monte Carlo WCT – Singles draw|url=http://www.atpworldtour.com/en/scores/archive/monte-carlo/410/1977/draws?matchType=singles|publisher=Association of Tennis Professionals (ATP)}}

| champd={{flagicon|FRA}} François Jauffret / {{flagicon|TCH}} Jan Kodeš{{cite web|title= 1977 Monte Carlo WCT – Doubles draw|url=http://www.atpworldtour.com/en/scores/archive/monte-carlo/410/1977/draws?matchType=doubles|publisher=Association of Tennis Professionals (ATP)}}

}}

The 1977 Monte Carlo Open was a men's tennis tournament played on outdoor clay courts at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France. The tournament was part of the World Championship Tennis (WCT) tour. It was the 71st edition of the event and was held from 4 April through 10 April 1977. Björn Borg won the singles title and the accompanying $30,000 first-prize money.{{cite news|title=Borg wins Monte Carlo tournament|url=https://news.google.com/newspapers?id=nP4zAAAAIBAJ&sjid=LyMIAAAAIBAJ&pg=5321%2C3377135|work=Bangor Daily News|publisher=AP|date=11 April 1977|page=17}}{{cite book|title=World of Tennis 1978 : a BP yearbook|year=1978|publisher=Macdonald and Janes|location=London|isbn=9780354090391|pages=173, 176|editor=John Barrett|editor-link=John Barrett (tennis)}}