Samsung Galaxy S III是韩国三星电子的旗舰级智能型手机，采用Android 4.0.4（Ice Cream Sandwich）操作系统，为Samsung Galaxy S II的后继机种；其于2012年5月3日在英国伦敦发表。

Samsung Galaxy S III拥有之全新接口－Next TouchWiz强调人性化。其拥有 800 万像素的后置照像镜头以及 190 万像素的前置视频镜头，并支持人脸识别功能。而处理器部分则采用三星电子自制之Samsung Exynos 4412四核心1.4Ghz 处理器。该机采用 4.8吋，1280 x 720 HD Super AMOLED 屏幕，支持NFC近场通信。内存闪存可选择 16、32或64 GB，机身颜色有金属蓝色以及镜激白供选择。三星还将为AT&T用户独家专供一款红色版。

The Samsung Galaxy S III is a multi-touch, slate-format smartphone designed, developed, and marketed by Samsung Electronics that runs the Android OS by Google. It has additional software features, expanded hardware, and a redesigned physique from its predecessor, the Samsung Galaxy S II. The S III employs an intelligent personal assistant (S Voice), eye-tracking ability, and increased storage. Although a wireless charging option was announced, it never came to fruition. Depending on country, the 4.8-inch (120 mm) smartphone comes with different processors and RAM capacity, and 4G LTE support. The device was launched with Android 4.0.4 "Ice Cream Sandwich", was updated to Android 4.3 "Jelly Bean", and can be updated to Android 4.4 "KitKat" on variants with 2GB of RAM. The phone's successor, the Samsung Galaxy S4, was announced on March 14 2013 and was released the following month.