小前锋（英语：Small forward），俗称第三人（英语：the three），是篮球比赛阵容中的一个位置；传统上以进攻得分为主要任务，强调快速推进上篮的能力。随着各种半场进攻战术以及三分线的发展，现今篮坛的小前锋除了速度以外，往往还被要求具备运球突破以及长距离投射的能力。

由于强调速度多于强调力量，小前锋通常较大前锋灵活，而体格不如大前锋壮硕。受限于人类先天的体型条件，能够达到小前锋技术要求的篮球运动员，很少有身高超过2米10的；以现今世界男子篮坛的一般水平而论，通常小前锋的身高介于1.96米（6呎5吋）与2.05米（6呎9吋）之间。

The small forward (SF), also known as the three, is one of the five positions in a regulation basketball game. Small forwards are typically somewhat shorter, quicker, and leaner than power forwards and centers, but on occasion are just as tall. The small forward position is considered to be perhaps the most versatile of the five main basketball positions. In the NBA, small forwards usually range from 6' 6" (1.98 m) to 6' 9" (2.06 m). The ideal position for a small forward would be between the key and three-point line.