Cristian Osvaldo Álvarez Reyes (born 9 January 1978) is an Argentine former professional footballer who played mainly as a right-back.
He played six years of his career in Spain, amassing league totals of 170 matches and 33 goals in representation of three teams (42/6 in La Liga).
Born in Buenos Aires, Álvarez began his career at Club Atlético Lanús in the Argentine Primera División in 1998.
After another loan in the Spanish second level, with CD Tenerife, Álvarez returned to Santander, appearing in 23 matches in 2006–07 as the Cantabria team finished tenth.
In the 2009 off-season, after helping Córdoba finish mid-table, 31-year-old Álvarez returned to his country and a former club, signing with Arsenal Sarandí.