Hallo Hallo
Hallo Hallo may refer to:

Hallo Hallo (Ace of Base song), a 2000 Ace of Base single
Hallo Hallo (Lonnie Devantier song), the Danish entry in the 1990 Eurovision Song Contest
Hallo Hallo (Odd Nordstoga song), a song by Norwegian musician Odd Nordstoga
Hallo Hallo, a song by German rappers Azet & Zuna

See also
'Allo 'Allo!, a British sitcom