The couple asked the president over Facebook. Kirchner is a mother of two herself.
“Cristina has agreed to be godmother. What a great gesture! I hope she can come to the (baptism) ceremony and does not send a representative. It’s a dream come true for us,” Karina Villaroel said from Cordoba, 700 kilometers (450 miles) north of Buenos Aires.
The office for the center-leftist president, who pushed same-sex marriage legislation which was approved in 2010, has not confirmed if Kirchner will attend the baptism — believed to be the first time that a child of an Argentine lesbian couple has been baptized.
Villaroel’s partner, Soledad Ortiz, underwent in-vitro fertilization and Umma Azul was born on January 27.
“We come from Catholic families but do not go to church often ourselves,” said Villaroel. “We want to baptize her and then the baby can decide what she wants to do, and follow her own heart.”
About 75 percent of Argentines are Roman Catholic.
Argentina in July 2010 became the first Latin American country to legalize same-sex marriage. Homosexual couples can also adopt.