21st Century Boy by Sigue Sigue Sputnik first appeared on the Israeli foreign-music chart on 29 Jun 1986, entering at #20. It peaked at #18 on 13 Jul 1986. In total it spent 4 weeks on the chart, last charting on 20 Jul 1986.
| Wk | Date | Pos |
|---|---|---|
| 1 | 29 Jun 1986 | 20 |
| 2 | 6 Jul 1986 | 19 |
| 3 | 13 Jul 1986 | 18 |
| 4 | 20 Jul 1986 | 27 |