Nearly 800 school aides, family workers and other public-school support staffers are set to get pink slips this fall, education officials said yesterday.

The layoffs are part of wider personnel cuts that city officials had said would be unavoidable without union give-backs.

Shrinking budgets and school phase-outs have also led principals to cut more than 2,100 teachers from their budgets — although those workers are entitled to stay on the Department of Education’s payroll and seek positions elsewhere.

Nearly half the recently shed teachers have already found new positions or left the school system, officials said.