Three top NYPD execs are collecting hefty pensions from their time on the force in addition to six-figure salaries for their current civilian roles — including the man tasked with keeping cops honest, Internal Affairs boss Joseph Reznick, a Post review has found.

And despite carrying the lofty title, the trio isn’t even technically deputy commissioners by the letter of the City Charter, which the department has apparently flouted for years to swell its well-compensated executive ranks.

The Post uncovered the dual incomes of Reznick, Deputy Commissioner of Labor Relations John Beirne and Deputy Commissioner for Employee Relations Robert Ganley through a review of payroll and pension records — just weeks after exclusively reporting that former NYPD Chief of Department Terence Monahan was also double-dipping in his new City Hall gig.

Reznick, 70, started pulling in a $177,825.72 annual pension 19 months after changing titles from chief of internal affairs to deputy commissioner of internal affairs in March 2014, according to public data and pension records obtained through the state Freedom of Information Law.

Public payroll records show that that’s on top of a current $241,116 salary for Reznick, whose tumultuous tenure has recently included using controversial facial recognition software to identify cops caught drinking en route to a slain colleague’s funeral, and overseeing the questionable use of subpoenas in internal probes to obtain reporters’ records.

The now-civilian IAB head brags in his LinkedIn profile how his post was specifically created for him “due to a ridiculous restricted age requirement” capping uniformed service at 63.

“This new title basically allows me to work in my current assignment with no ‘age limit’ applied,” wrote Reznick.

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