ROS

Ros/ROS可能指以下事物：

科技
 服務請求（Request of Service）
 機器人作業系統（Robot Operating System）
 ReactOS（React Operating System）, open source operating system for Windows binary compatibility
 活性氧（Reactive oxygen species），含氧化學活性分子
 俄羅斯艙段, components of the International Space Station
 視桿細胞外節（Rod Outer Segment），视杆细胞，眼睛視網膜感光部位
 Resident operating system (or ROM operating system), a (sometimes rudimentary) operating system (or BIOS) residing in ROM rather than loadable from disk (DOS)

地方
 羅斯湖（Lake Roś），波蘭
 新加坡共和國（Republic of Singapore）, a country in South-East Asia
 預備軍官學校（Reserve Officer School）, a conscript training facility in Finland
 Rosario - Islas Malvinas International Airport, Argentina
 羅斯河（Ros River），烏克蘭

人與團體
 Raggruppamento Operativo Speciale, the Anti-organized Crime Branch of the Italian Carabinieri
 Reparti i Operacioneve Speciale, a former Albanian special forces unit
 Arno Ros, German philosopher
 Edmundo Ros, musician
 ，柬埔寨女歌手。

其他
 Ros (grape), another name for the wine grape Mourvèdre
 Ros (vehicles), a Greek light truck manufacturer
 銷售報酬率（Return on sales）, an accounting ratio that detects operational efficiency
 Revenue On-Line Service, a tax returns system used in Ireland
 Review Of Systems, medical

參見
 Ross (消歧義)
 Rosas (姓氏), of which Ros is a spelling variation 
 RDOS (消歧義)