The Rio Grande Valley Giants was an American minor league baseball franchise in the Double-A Texas League located in Harlingen, Texas, that played from the beginning of the 1960 season through June 10, 1961.
The Texas League underwent a massive face lift in the late 1950s after three of its top franchises — Dallas, Fort Worth and Houston — moved up to the Triple-A American Association for the 1959 season.
The Corpus Christi Giants, which joined the TL in 1958, finished last in attendance (61,500) in 1959, and transferred to Harlingen over the winter.
In 1960, the Rio Grande Valley club won the regular-season pennant and finished third in attendance (75,000) in the six-team league.
But the following season, a poor club on the field resulted in a severe attendance decline, and the Giants moved to Victoria, Texas, in mid-June.