The 1994 World Cup winner is unhappy with new works on the iconic stadium ahead of football's biggest tournament, also criticising Fifa plans for the competition
The former striker, who won the 1994 World Cup with his country, is less than impressed as he launched an attack on the stadium's new look.
"The Maracana is losing all its character. I know the stadium well from my playing days and I can see that this is happening," Romario told Terra.
"It is completely different. Maybe they'll even change the name of the stadium."
Romario is currently a congressman in Brazil and he was quick to send out pointed remarks to Fifa.
Football's governing body is trying to have a say on current Brazilian laws which allow students and pensioners to buy half-price tickets for the tournament.
The Brazilian feels Fifa may try to take away that benefit and he is urging politicians to react.
"If Fifa is not put in its rightful place it will soon have more power than our president," he told journalists.
"Fifa could earn a little bit less so that the Brazilians can take part."
Brazil take on Mexico in an international friendly on Tuesday night.