Mario de las Casas

{{Short description|Peruvian footballer (1901–2002)}}

{{Use dmy dates|date=September 2024}}

{{family name hatnote|de las Casas|Ramírez|lang=Spanish}}

{{Infobox football biography

| name = Mario de las Casas

| image =

| caption =

| fullname = Mario de las Casas Ramírez

| birth_date = {{birth date|1901|1|31|df=y}}{{cite web|url=https://www.national-football-teams.com/player/63081/Mario_De_Las_Casas.html|title=Mario de las Casas (Player)|website=National Football Teams}}

| birth_place = Lima, Peru

| death_date = {{Death date and age|2002|10|10|1901|1|31|df=y}}

| death_place = Callao, Peru

| height =

| position = Defender

| years1 = | clubs1 =

| caps1 = |goals1 =

| nationalyears1 = | nationalteam1 = Peru| nationalcaps1 = | nationalgoals1 =

}}

Mario de las Casas Ramírez (31 January 1901 – 10 October 2002) was a Peruvian football defender who played for Peru in the 1930 FIFA World Cup and the 1935 Campeonato Sudamericano.