If confirmed by the Senate, Sotomayor, 54, would succeed retiring Justice David Souter. Two officials described Obama's decision on condition of anonymity because no formal announcement had been made.
Administration officials say Sotomayor would bring more judicial experience to the Supreme Court than any justice confirmed in the past 70 years.
A formal announcement was expected at midmorning.
THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.
WASHINGTON (AP)Officials tell The Associated Press that President Barack Obama intends to nominate federal appeals court judge Sonia Sotomayor (SUHN'-ya soh-toh-my-YOR') as the first Hispanic to serve on the Supreme Court.
Sotomayor, 54, would succeed retiring Justice David Souter if confirmed by the Senate. The officials spoke to AP on condition of anonymity because Obama has not yet announced his decision.