Javier Arnaldo Portillo Martínez (born 10 June 1981) is a Honduran professional football player who plays as a left midfielder for Naranja Mecánica in the American ISLANO league.

[1] Portillo joined Vida in December 2010 signing a six-month contract with the club.

[3] On 6 May 2011, Portillo moved to Olimpia as a free transfer signing a two-year contract with the club.

He made his official debut for the club in the CONCACAF Champions League with a 3–1 defeat against Santos Laguna.

[4] On 20 May 2011, Portillo was included by Luis Fernando Suarez in Honduras's 23-man squad for the 2011 CONCACAF Gold Cup.