Stoyan Angelov Pilichev (????? ??????? ???????, born November 20, 1938, Chiroko, Bulgaria) was a Bulgarian boxer who competed in the lightweight category at the 1964 and 1968 Summer Olympics, as a member of the Bulgarian national boxing team.
In the 1964 Summer Olympics he lost to Józef Grudzien from Poland in the quarter-final.
In the 1968 Summer Olympics he lost to Calistrat Cu?ov from Romania in the quarter-final.
Pilichev represented Bulgaria in the lightweight category of the 1969 European Amateur Boxing Championships.
After reaching the final, he faced Calistrat Cu?ov from Romania, in a rematch of 1968 Mexico City quarter-final, and he lost on points, resulting in winning the silver medal of the division.