Jacob Edward Turner (born May 21, 1991) is a baseball starting pitcher for the Detroit Tigers.

During his career playing for Westminster Christian Academy in St. Louis, Turner compiled a record of 20–4 as well as two saves and 187 strikeouts. Turner, who hit 91 MPH his freshman year in high school, hit 98 MPH his senior year. He worked with former major league pitcher Todd Worrell, and also received coaching from former major league catcher Mike Matheny throughout his time at Westminster. Before the 2009 MLB Draft, Turner had committed to playing baseball at the University of North Carolina under head coach Mike Fox.

Turner was drafted ninth overall in the 2009 Major League Baseball Draft by the Detroit Tigers. Turner signed a major league contract with the Tigers for a guaranteed $5.5M, with the potential to reach $7M. Turner is represented by sports agent Scott Boras. He was placed on the Detroit Tigers 40-man roster in November 2009.

Prior to the 2010 season, Turner was named the 26th best prospect in baseball according to Baseball America The same publication lists Turner as the No. 1 prospect in the Tigers system.

Jacob ( /ˈdʒeɪkəb/; Hebrew: יַעֲקֹב‎‎ Standard Yaʿakov, Tiberian  Yaʿăqōḇ (help·info); Septuagint Greek: Ἰακώβ Iakōb; Arabic: يَعْقُوب‎ Yaʿqūb; "heel" or "leg-puller"), also later known as Israel (Hebrew: יִשְׂרָאֵל‎‎, Standard Yisraʾel, Tiberian Yiśrāʾēl; Septuagint Greek: Ἰσραήλ Israēl; Arabic: إِسْرَائِيل‎ Isrāʾīl; "persevere with God"), as described in the Hebrew Bible, the Talmud, the New Testament and the Qur'an was the third patriarch of the Hebrew people with whom God made a covenant, and ancestor of the tribes of Israel, which were named after his descendants.

In the Hebrew Bible, he is the son of Isaac and Rebekah, the grandson of Abraham and Sarah and of Bethuel, and the younger twin brother of Esau. Jacob had twelve sons and at least one daughter, by his two wives, Leah and Rachel, and by their female slaves Bilhah and Zilpah. The children named in Genesis were Reuben, Simeon, Levi, Judah, Dan, Naphtali, Gad, Asher, Issachar, Zebulun, daughter Dinah, Joseph, and Benjamin.

Before the birth of Benjamin, Jacob is renamed "Israel" by an angel (Genesis 32:28-29 and 35:10). The name "Israel" can be translated as "God contended", but other meanings have also been suggested. Some commentators say the name comes from the verb śœarar ("to rule, be strong, have authority over"), thereby making the name mean "God rules" or "God judges". Other possible meanings include "the prince of God" (from the King James Version) or "El fights/struggles".