Shree Ganesha Gayatri Mantras

EKADANTAAYA VIDHMAHAE
VAKRATUNDAAYA DHEEMAHI
TANNO DANTI PRACHODAYAAT (Ganapati Upanishad)

Meaning:

I know the one-tusked Lord teaching me the oneness. I know the curve-faced one straightening my path. May that elephant-headed God bless me with enlightment.

OM TATPURUSHAAYA VIDHMAHAE
VAKRATUNDAAYA DHEEMAHI
TANNO DANTI PRACHODAYAAT (Narayana Upanishad)

Meaning:

I know that transcendental person. May that curve-faced one guide me. May that Ganesha of elephant head inspire and illumine my mind.

OM TAT KARAATAAYA VIDHMAHAE
HASTI MUKHAAYA DHEEMAHI
TANNO DANTI PRACHODAYAAT (Maibraayani Samhita 2:6-9)

Meaning:

I know the mysterious Lord. May His elephant face guide me. May Lord Ganesha illumine my intellect.