Hartmann rhymes with:
hartman, artman, bartman, gartman, hartman, zartman, artman, bartman, fortman, gartman, hartman, hortman, kortman, ortman, ortmann, portman, wartman, zartman, zortman
Hartmann sounds like:
haradim, hardeman, harden, hardiman, hardimon, hardin, hardman, hardwin, hardymon, harten, hartin, hartman, hartney, harton, hearten, herdman, hiradin, horatian, horten, hortman, horton, howerton, hurdman