I'm So in Love: Grandes Éxitos is the second greatest hits album by iconic Mexican pop singer Paulina Rubio. It was released in 2001. Like her previous compilation Top Hits, released only a year before (2000), I'm So in Love: Grandes Éxitos contains Rubio's biggest Spanish hits from 1992 up to 1996, with the addition of the English versions of her hits "Enamorada" (as the title track "I'm So In Love") and Sólo Por Ti (as "Only For You"). The album also contains a remix of "I'm So In Love" and a medley of her hits previously included in Top Hits.
In 1996, Rubio released her last album under the EMI Latin label, the Spanish-language Planeta Paulina. Rubio also recorded English versions of several of the songs on the album, but eventually they were not included. The English songs were being held to be released as part of Paulina's first English crossover album, which was supposed to be the English version of the Planeta Paulina album, but EMI later declined to release it. Some of these English songs were finally released years later as part of an album on this hits compilation.