The governor of Indiana is the head of government of the U.S. state of Indiana. The governor is elected to a four-year term and is responsible for overseeing the day-to-day management of the functions of many agencies of the Indiana state government. The governor also shares power with other statewide executive officers, who manage other state government agencies. The governor works out of the Indiana Statehouse and holds official functions at the Indiana Governor's Residence in the state capital of Indianapolis.

The 52nd, and current, governor is Republican Mike Braun, who took office on January 13, 2025.

The position of the governor has developed over the course of two centuries. It has become considerably more powerful since the mid-20th century after decades of struggle with the Indiana General Assembly and Indiana Supreme Court to establish the executive branch of the government as an equal third branch of the state government. Although gubernatorial powers were again significantly expanded by constitutional amendments during the 1970s, Indiana governors remain significantly less powerful than their counterparts in most other states.

The governor's powers are established in Article V of the Constitution of Indiana. Constitutionally, the governor has very limited executive authority to manage the government of the state; most exercisable powers over state agencies are held by independently elected cabinet heads.

The governor works in concert with the state legislature (the bicameral Indiana General Assembly, consisting of the Indiana House of Representatives and the Indiana Senate) and the state supreme court (the Indiana Supreme Court) to govern the state. The governor has the power to veto legislation passed by the General Assembly. If vetoed, a bill is returned to the General Assembly for reconsideration. Unlike other states, most of which require a two-thirds supermajority to override a veto, the Indiana General Assembly may override the veto with an absolute majority vote in both chambers.

One of the governor's most important political powers is the ability to call a special session of the General Assembly. During a two-year period, the assembly can meet on its own for no more than 91 days, and this often prevents them from passing all the legislation they intend to. This can give the governor considerable influence in the body which will often compromise on issues with him in exchange for a special legislative session.

Among his other powers, the governor can call out the state defense force (the Indiana Guard Reserve) or the Indiana National Guard in times of emergency or disaster. The governor is also charged with the enforcement of all the state's laws and the Indiana Code through the Indiana State Police. The governor also has the ability to grant a pardon or commutation of sentence of any person convicted of a crime in the state, except in cases of treason or impeachment.

In addition to constitutional powers, governors also have a considerable degree of statutory authority. Most of the authority exercised by governors on a daily basis is derived from statute, giving the General Assembly a great degree of power to expand or contract the governor's authority. Historically, the party in control of the General Assembly would reassign control of agencies from the governor or to the governor based upon party affiliation, and the party affiliation of the cabinet heads, which at times has left the governor with no direct control over state agencies.