McKenna \m(c)-kenna, mck(en)-na\ as a boy's name (also used as girl's name McKenna), is pronounced ma-KEN-ah. It is of Gaelic origin, and the meaning of McKenna is "ascend". From the Gaelic word "eirghe".
McKenna has 1 variant form: McKennon.
For more information, see also the related name Makena.