RSW
RSW stands for:
- Realschule Schloss Wittgenstein , a private Realschule in Bad Laasphe, North Rhine-Westphalia
- Regionalbus Saar-Westpfalz , a public transport company
- District of Rosenberg i. Western pr. , Vehicle registration number of the former district
- Southwest Florida International Airport in the US state of Florida as IATA code
- Gittersee high-purity silicon plant , planned and never completed industrial project of the GDR in Dresden
- Republican Army Armed Forces, a paramilitary unit from the founding time of the Weimar Republic
- (New) Ruhrort shipyard , shipyard in Duisburg-Ruhrort
- Wheelset shaft
- Accounting, Taxes, Commercial Law , a course at the dual universities in Baden-Württemberg
