City will host Blackburn Rovers on Saturday 23 July as the first of two friendlies at the LNER Stadium during pre-season.
The Imps will also host a second home friendly on Tuesday 26 July as part of a family day at the stadium - both games will kick-off at 3pm.
City will also head to Sky Bet League Two side Hartlepool United on Saturday 16 July as part of the pre-season schedule.
Ticket information for all these games, as well as further fixtures in the schedule, will be confirmed in due course.