Arílson Gilberto da Costa (born 11 June 1973), simply known as Arílson, is a Brazilian professional football^[1] coach and former player who played as a midfielder.

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Arílson for Esportivo de Bento Gonçalves, Grêmio, 1. FC Kaiserslautern, Internacional, Palmeiras, Real Valladolid, Universidad de Chile, 15 de Novembro, Portuguesa (SP), América Mineiro, Club Santa Fe, Mogi Mirim and Atlético Tubarão. He also represented the Brazilian national side in seven international games between 1995 and 1996.

Arílson began playing football in the Bento Gonçalves' youth system, and became a professional with Grêmio. He moved to Germany to play for 1. FC Kaiserslautern, but wanted to return to Brazil shortly after his move. Arílson initially tried to re-join Grêmio, but the club would not meet Kaiserslautern's asking price. Instead, he transferred to Grêmio's arch-rivals Internacional.^[2]