"Mon ami Pierrot" ("My friend Pierrot") was the Monaco's entry in the Eurovision Song Contest 1959, performed in French by the French singer Jacques Pills. This was Monaco's first entry in the Contest.
The song is in the chanson style popular in the early years of the Contest, with Pills singing about the fleeting fame of his friend Pierrot, whom he asks to join him and "sing about your loves and your grief" after his fame is over.
At the close of voting, it had received 1 point, placing it 11th in a field of 11.
Pills' daughter, Jacqueline Boyer, won the 1960 Contest, representing France with "Tom Pillibi".