C'est ce qui ressort en premier d'une recherche Internet comme vous l'aurez certainement vu vous-même.
Néanmoins, quand vous posez une question, surtout sur un sigle, il est indispensable de situer le fragment dans une phrase ou, mieux, un paragraphe, un contexte, sinon il est impossible de vérifier que la réponse proposée est cohérente. Dans ce sens, ma confiance dans la réponse que je donne n'est que moyenne.

Many translations are possible for Director/Responsable, depending on the particular jargon which the given organization favors.

--------------------------------------------------
Note added at 1 hr (2023-10-09 10:28:42 GMT)
--------------------------------------------------

Examples: Manager of Human Resources, Human Resources Officer, Human Resources Department Head.

--------------------------------------------------
Note added at 1 hr (2023-10-09 10:30:32 GMT)
--------------------------------------------------

Alternative: Personnel Manager (etc.).

One of the major differences between a hr manager and an hr administrator is the type of duties they have. A hr manager oversees daily activities within their department, while an hr administrator carries out company policies and provides support to managers in their departments.
An hr administrator typically performs administrative tasks [duh], such as conducting training for new employees, creating recruitment and hiring plans and developing performance reviews. They also help managers with scheduling, employee transfers and providing feedback on managers’ assessments of their staff members. In contrast, a hr manager often organizes their own team by creating schedules, assigning projects and leading meetings. They may also provide guidance to their team members about career development and growth opportunities.
https://climbtheladder.com/hr-manager-vs-hr-administrator/#:...

"Human Resource (HR) administration refers to the managing of human capital within an organization or industry. Once called “personnel management,” human resources is leading the way for improving the overall employment experience for billions of hard-working professionals around the world. In addition, human resource administration provides the business strategy by which organizations can meet the demands of the future.
In many organizations, human resource administration is handled by a team of human resources professionals headed by a senior human resources director. The duties of the members of the team can range from recruiting and employee relations to payroll and benefits administration. The entire team works together to achieve the human resources goals of the organization under the direction of the human resources manager"
https://www.smartcapitalmind.com/what-is-human-resource-admi...

I suspect what this actually means is that a HR director a) sleeps with the boss and b) drinks champagne while a HR administrator a) doesn't (or only exceptionally or to spite the HR director) b) and struggles to afford beer.

based on the source below

--------------------------------------------------
Note added at 8 hrs (2023-10-09 17:30:46 GMT)
--------------------------------------------------

https://anglais-pratique.fr/index.php/rubriques/emploi-organ...

responsable de l'administration du personnel personnel administration manager