Juan de Ayala

Juan de Ayala
Juan Manuel de Ayala
Born	Juan Manuel de Ayala y Aranza (1745-12-28)28 December 1745 Osuna, Andalucía, Spain
Died	30 December 1797(1797-12-30) (aged 52) New Spain now Mexico
Nationality	Spanish
Occupation	naval officer

Juan Manuel de Ayala y Aranza (28 December 1745 – 30 December 1797) was a Spanish naval officer who played a significant role in the European exploration of California, as he and the crew of his ship the San Carlos were the first Europeans known to have entered the San Francisco Bay, having sailed there from the Port of San Blas, Nayarit, Mexico.