Absolutely. One of the most widely known theories on the development of the Sumerian script postulates that the script originated from merchants' seals, which can be seen all over the place in excavations. We also find Egyptian vessels with maker's marks on them all the time and it's speculated that whether or not the mysterious Harappan seals represent a legitimate, fully-fledged script they may well be some form of merchant's mark, and the markings, which may or may not be script, found regularly on pottery shards of the Late Harappan Period are often considered to be some sort of maker's mark. More definitely, Attic vase painters and potters frequently signed their own work, and the so-called Pioneer vessels of the late Archaic and early Classical Periods at Athens bear the names of their potters and sometimes their schools quite frequently--and amusingly, different schools often wrote jabs at each other into their pottery to attest to their quality over their competitors.

But the most interesting example of what you're asking about that I know of is the Praeneste fibula, which features an inscription that has been generally accepted as the earliest example of the Latin language, as well as the first personal names attested in Roman history. The stem of the fibula has an inscription on it that reads:

MANIOS MED FHEFHAKED NVMASIOI

from right to left (probably imitating either Etruscan script or the Archaic Greek tradition of boustrophedon). This is a very early Archaic Latin version of the phrase usually spelled "Manios med fefecet Numasio," which rendered into Classical Latin reads "Manius me fecit Numerio," or "Manius made me for Numerius" (or Numasius--the family name Numasius, originally a personal name, seems to have changed over time to become the name Numerius).

The Praeneste fibula is extremely important because it shows that the Latin script already existed within the Italian peninsula by around the 7th Century, B.C. Interestingly, since the fibula was found in Praeneste, in Campania, it indicates that there probably was some sort of contact between the Greek and Etruscan cities of Campania and those of upper Latium--many scholars have suggested the 7th Century as the starting point for the increased Etruscan influence in Rome, although this is hotly contested. The Praeneste fibula and slightly later inscriptions also show that Archaic Latin grammar seems to have been more or less cemented by the 7th Century and was already showing the grammatical patterns we find later in Terence, Plautus, and Ennius. One thing that was kind of a big deal for a while was that the Praeneste fibula gives us our first two directly attested Latin (not necessarily Roman, since we don't know where the fibula was made) names: Manius and Numerius (or, rather, Manios and Numasios). This is important since the name Manius is very much a Latin name, whereas Numasius has been attested in certain Etruscan writings. There's a lot of debate over what this means, but it's certain that some kind of interaction was going on there between Latins and Etruscans as far back as the 7th Century, and it was strong enough for such a commission to have been made

While probably not the oldest example of craftsmen distinguishing their goods by marking them, the Ulfberht swords are an interesting example.

These were 'viking' swords of nearly unparalleled steel-quality that were marked with ""+VLFBERH+T" near the hilt of the sword. It's possible that Ulfberht was the name of the craftsman (or a group of craftsmen).

It is interesting to note that, just as in modern times, there were attempts to use that marking fraudulently. Many swords of lower-quality steel have been found with "+VLFBERHT+" (notice the different placement of the +) inscribed on them. It seems clear that the Ulfberht name became associated with skilled craftsmanship and others tried to capitalize on it.