Azúcar amargo

{{Distinguish|Azúcar Amarga}}

{{Infobox song

| name = Azúcar amargo

| cover = Azucar amargo.jpg

| alt =

| type = single

| artist = Fey

| album = Tierna la Noche

| released = {{Start date|1996|10|16|df=yes}}

| recorded =

| studio =

| genre = Dance pop

| length = {{Duration|m=4|s=42}}

| label = Sony Mexico

| writer = Mario Ablanedo

| producer = Ablanedo, David Boradoni

| prev_title = Fiebre del Sábado (En la Noche)

| prev_year = 1996

| next_title = Muévelo

| next_year = 1996

}}

"Azúcar amargo" is a song recorded by Mexican singer Fey from her second album Tierna la Noche. The song was written by Mario Ablanedo with his production alongside David Boradoni, and it was released as the album's lead single on 16 October 1996 through Sony Music Entertainment Mexico. A dance pop song about a relationship which brings her both joy and pain; the song's title literally means 'bitter sugar', and is used in the context of the term 'bittersweet'.

It quickly became a hit song, reaching the number-one in Mexico, Argentina, Chile, Colombia and Peru. In the United States, it topped the Latin Pop Airplay and reached number 8 on the Hot Latin Tracks, both from Billboard. "Azúcar amargo" is considered Fey's most successful and signature song.