Aser Mateus Almeida Ramos (born 23 June 1991) is a Brazilian para-athlete.
In 2023, he competed in the men's long jump T36 event at the World Para Athletics Championships held in Paris, France. He represented Brazil at the 2023 Parapan American Games and won a gold medal in the long jump and a silver medal in the 100 metre T36 events.
He represented Brazil at the 2024 Summer Paralympics and won a silver medal in the long jump T36 event.