Allo

Allo may refer to:


 * allo-, a prefix used in linguistics to form terms for variant forms
 * 'Allo, a form of Hello
 * Allo, a shortening of allosexual
 * Allopregnanolone, a neurosteroid sometimes abbreviated as "ALLO"
 * 'Allo 'Allo!, a British television sitcom

Places

 * Allo, Navarre, a town in Spain
 * Allo Mahar, a village and union council in Pakistan

Songs

 * "Allô, allô", a 2006 song by Ilona
 * "Allo" (song), a 2021 song by Loboda

Technology

 * Allo (company), a Ukrainian electronics distribution company
 * Allo Communications, a fiber-optic telecommunications company and subsidiary of Nelnet
 * Google Allo, a discontinued AI-based messaging app made by Google