Ib is a ♂ male name.
Ib is a Danish short form of the Hebrew name Jakob.
Ib means “may God protect” and “holder of the heel” (from Hebrew “‘akév/עָקֵב” = heel) or “supplanter” (from Hebrew “‘akáv/עָקַב” = to follow/to supplant), because he was born grasping the heel of his first born twin brother Esau and he bought his birthright to supplant him.