Some muslims claim Muhammad is mentioned in the Song of Solomon.

1. The Hebrew word: מַמְתַּקִּ (mamtaq)

2. Where the Muhammad claim comes in

Some Muslims argue that Song of Solomon 5:16 in Hebrew mentions Muhammad by name.
The verse in Hebrew reads:

חִכּוֹ מַמְתַקִּים וְכֻלּוֹ מַחֲמַדִּים
ḥikko mamtaqqīm, we-kullô maḥămadîm

Muslim polemicists sometimes point to מַחֲמַדִּים (machmadim) and say: “See, that spells Muhammad!”

3. Why that’s not accurate

In short:

The similarity in sound between machmad and Muhammad is coincidental, not etymological.