速球型投手（Power pitcher, Fireballer），又称威力型投手、刚速派投手、力量派投手、火球人，火球人是「fireballer」的直译，指利用自己速球系球路来压制打者的投手，这种投手的球速飞快，速球派的投手，在各国职棒都有自己的定义，没有统一的标准，在美国多半是最高球速在153km/h（约95MPH）或以上，而实战球速亦有148km/h（约92MPH）以上的投手；在日本职棒是最高球速达148km/h以上，实战球速145km/h以上的投手；中华职棒是最高球速145km/h以上，而实战球速在140km/h以上的投手，视为速球派投手。

Power pitcher is a term in baseball for a pitcher who relies on the velocity of his pitches, sometimes at the expense of accuracy. Power pitchers usually record a high number of strikeouts, and statistics such as strikeouts per 9 innings pitched are common measures of power. An average pitcher strikes out about 5 batters per nine innings while a power pitcher will often strike out one or more every inning. The prototypical power pitcher is National Baseball Hall of Fame member, Nolan Ryan, who struck out a Major League Baseball record 5,714 batters in 5,386 innings. Ryan recorded seven no-hitters, appeared in eight Major League Baseball All-Star Games but also holds the record for most walks issued (2,795).