A new and distinct cultivar of Rose plant named ‘ESM R186’, characterized by its upright and strong flowering stems moderately vigorous to vigorous growth habit and high productivity dark green-colored leaves relatively tall flower buds creamy white and greenish white colored flowers that are held on strong pedicels on relatively large sprays freely flowering habit with typically about six flowers per spray and good productivity with about twelve flowering stems per plant produced per year and excellent postproduction longevity.
