|Full name||Julio César Romero Insfrán|
|Date of birth||28 August 1960|
|Place of birth||Luque, Paraguay|
|Height||1.73 m (5 ft 8 in)|
|1980-1983||New York Cosmos||104||(37)|
|1995||Deportes La Serena||3||(1)|
|1995||Club Cerro Corá||1||(0)|
|* Senior club appearances and goals counted for the domestic league only|
Julio César Romero Insfrán (born 28 August 1960 in Luque, Paraguay), nicknamed Romerito, is a former football midfielder from Paraguay, considered among the best players in Paraguayan football history. He is the only Paraguayan named by Pelé as one of the top 125 greatest living footballers in March 2004.
Romero started his career at local club Sportivo Luqueño in 1977, by 1979 Romero's consistent performances had earned him a place in the Paraguay national football team that played in the FIFA World Youth Championship and was considered one of the best players of the tournament along with Diego Maradona. In the same year, Romero played a key role in Paraguay's win in the Copa América, scoring three goals.
In 1980, he joined now defunct New York Cosmos where he played alongside such greats as the Brazilian and German World Cup winning captains of 1970 and 1974 Carlos Alberto and Franz Beckenbauer. In the 1980 Soccer Bowl he scored the game-winning goal of a 3-0 victory over Ft. Lauderdale.
In 1986, he was a key player in helping the Paraguayan national team return to the FIFA World Cup finals after a 28-year hiatus. At the finals in Mexico, he scored against Iraq and the host nation in the first round.
After a short spell with FC Barcelona in Spain  and a stint in Mexico with Puebla F.C. Romero returned to South America where he played out his career with Olimpia, Club Cerro Corá and Sportivo Luqueño in Paraguay and La Serena in Chile.
During his career, he scored a little more than 400 goals.