The Expo'98 logo on top, a fish in the centre and wreath of fishes around.

The Expo logo symbolizes the Sea and the Sun. It was conceived by Portuguese Augusto Tavares Dias, creative director in an advertising agency, and selected from 1,288 entries.

Coat of arms of Portugal with some fish around, denomination, the name of the country underneath. The date above, a wreath of fish below.

The coat of arms of Portugal is popularly referred as the Cinco Quinas (Five Quinas) or simply the Quinas (a quina being each of the five escutcheons in form of a cross with five bezants of the Portuguese shield). In the late 14th century, the number of bezants was fixed in five. Late explanations interpret them as the five wounds of Jesus Christ. The shield resting in front is composed of seven golden castles, which represent the Moorish castles conquered during the Reconquista.

Alternating plain and reeded sections (7 each)