At least 13 NYPD chiefs, inspectors and deputy inspectors currently serving in the No. 2 two spots of some of the department’s biggest commands will be transferred next week, The Post has learned.

The high-ranking police officials, the executive officers in borough and bureau commands, are being moved because Commissioner Ray Kelly wants them to have diverse experience, especially those being considered for further promotion, sources said.

A few of the moves involve promotions, while the rest are lateral moves.