Ignatius Rosoinaya Penyami (abbreviated Igor) or better known as Saykoji (born in Balikpapan, East Kalimantan, June 8, 1983, age 35 years) is an Indonesian rapper.

Through the song "So What Gitu Loh" in the first album Saykoji name became known publicly in 2006. At that time, Saykoji is one rap singer who is quite calculated after the era of Iwa K dims. After quite success with the first album, Saykoji also released a second album with singles "Jomblo" and "Deep Debut" which is successful among the younger generation. After that Saykoji also participated in a compilation album released by EMI and issued a single "Cockroach Ngesot".