Schalker may refer to:
- Schalke, a district of the city of Gelsenkirchen, Germany
- Schalker Eisenhütte Maschinenfabrik GmbH - german mnufacturer of mining locomotives and coking ovens.
- Schalker Verein, a former ironworks at Gelsenkirchen, closed in 1982.
- Schalker Kreisel (Schalker gyro/twist/turn), playing tactic in football, attributed to Ernst Kuzorra and his brother in law Fritz Szepan whilst at the football club of FC Schalke 04
- Schalke (Harz), mountain in the Upper Harz in the German state of Lower Saxony