Aavo Pikkuus (born 23 November 1954) is a retired Estonian cyclist.

He was part of the Soviet Union cycling team [fr] that won the 100 km team time trial at the 1976 Summer Olympics[1] and 1977 UCI Road World Championships and finished second at the world championships in 1975 and 1978.

[2] Between 1974 and 1977 Pikkuus won four national (Soviet) titles in the road race.

He won the Circuit de la Sarthe in 1977 and Giro delle Regione in 1978.

[2] He retired from cycling in 1981 and for several years successfully competed in auto rally.