The Lord-Lieutenant of Lincolnshire () is the British monarch's personal representative in the county of Lincolnshire. Historically, the lord-lieutenant was responsible for organising the county's militia. In 1871, the lord-lieutenant's responsibility over the local militia was removed. However, it was not until 1921 that they formally lost the right to call upon able-bodied men to fight when needed. Since 1660, all lord-lieutenants have also been Custos Rotulorum of Lincolnshire.
The lord-lieutenancy is now an honorary titular position, usually awarded to a retired notable person in the county. Until 1975, this had been awarded to a peer connected to the county.
This is a list of people who have served as Lord-Lieutenant of Lincolnshire.
The lord-lieutenant selects one of his or her deputy lieutenants to act as the vice lord-lieutenant. This office is not automatically renewed on the appointment of a new lord-lieutenant.
The current Vice Lord-Lieutenant is Andrew Clark.
A deputy lieutenant of Lincolnshire is commissioned by the Lord Lieutenant of Lincolnshire. Deputy lieutenants support the work of the lord-lieutenant. There can be several deputy lieutenants at any time, depending on the population of the county. Their appointment does not terminate with the changing of the lord-lieutenant, but they usually retire at age 75.
The current Deputy Lieutenants for Lincolnshire are: