Snowball (cockatoo), a male Eleonora Cockatoo noted as being the first non-human animal conclusively demonstrated to be capable of beat induction, i.e., dancing, to the Backstreet Boys' hit song "Everybody (Backstreet's Back)"
In business and finance
Snowball (finance), an "exotic" interest rate derivative
The debt-snowball method, popularized in part by Dave Ramsey as a means of improving one's financial position by reducing amounts owed to creditors
Snowball (single-board computer), from ST-Ericsson
Snowball (microcontroller), a microcontroller used in education
In other uses
Operation Snowball, an international alcohol, tobacco and other drug use prevention program for youth
Operation Snowball, the code name for a test using a large amount of conventional explosives to test nuclear technology, staged in Alberta, Canada in 1964
Snowball Derby, an auto race held every December in Pensacola, Florida
Snowball Earth, an epoch or epochs in which the entire planet was glaciated, or nearly so
Snowball effect, a situation, event or the like is said to snowball if it continually grows in intensity or magnitude under the force of its own inertia
Snowball sampling, a social research sampling method