The baby name Maciej appears in baby name data for the United States from 1991 to 2010. It was most popular in 2009 with 18 babies given the name.
In the later years of this period, Maciej has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1991 | 10 |
| 1993 | 6 |
| 1994 | 8 |
| 1995 | 5 |
| 1996 | 6 |
| 1998 | 12 |
| 1999 | 5 |
| 2000 | 5 |
| 2002 | 10 |
| 2004 | 12 |
| 2005 | 12 |
| 2006 | 12 |
| 2007 | 10 |
| 2008 | 12 |
| 2009 | 18 |
| 2010 | 14 |