The best-selling album of 1978 in Portugal is SATURDAY NIGHT FEVER (SOUNDTRACK) by BEE GEES.
Rank Artist Album Released
1
BEE GEES
SATURDAY NIGHT FEVER (SOUNDTRACK)
1977
2
KATE BUSH
THE KICK INSIDE
1978
3
SOUNDTRACK
O CASARÃO
1978
4
QUEEN
NEWS OF THE WORLD
1977
5
THE ROLLING STONES
SOME GIRLS
1978
6
GENESIS
AND THEN THERE WERE THREE
1978
7
VARIOUS ARTISTS
30 SUCESSOS EXPLOSIVOS
1978
8
SPACE
DELIVERANCE
1978
9
SOUNDTRACK
GREASE
1978
10
GRACE JONES
PORTFOLIO
1978
Source: Música & Som