Javier Demarcus "Marcus" Oliver (born February 8, 1995) is an American former professional football linebacker.

Recording 183 tackles, 5 sacks, 5 forced fumbles, 2 inceptions, 7 pass deflections in his sophomore and junior years.

Oliver announced he would not be returning for his final year of eligibility at Indiana and entered the 2017 NFL draft.

[2][3] After going undrafted in the 2017 NFL draft Oliver signed with the Philadelphia Eagles, but was waived after rookie minicamp.

[4][5] Oliver was signed by the Atlanta Legends of the Alliance of American Football, but was waived before the start of the 2019 regular season.