Vialba is a district ("quartiere") of Milan, Italy, part of the Zone 8 administrative division of the city.

It is located north of the city centre, adjacent to the municipality (comune) of Novate Milanese.

During Napoleonic rule, Vialba was annexed to Bollate itself, but regained its autonomy with the Kingdom of Lombardy–Venetia.

In 1841, Vialba was again annexed to another comune, Musocco, which in turn became part of Milan in 1923.

Vialba remained a rural district until after World War II; thereafter, it developed into a low-income housing residential area, seamlessly connected to the adjacent residential district of Quarto Oggiaro.