Spain

Boyd’s Bible Dictionary:

Anciently the whole peninsula of southwestern Europe, embracing Spain and Portugal; known to Greeks as Iberia and to Romans as Hispania
If identical with Tarshish, then known to Hebrews in Solomon’s time; certainly to Phoenicians. Known to Paul, who contemplated a visit to it ({vi 28328-28332}Rom. 15:24-28). Christianity early introduced there.

Concise Bible Dictionary:

The well-known country in Europe. It is mentioned in the New Testament only in relation to Paul’s purpose to visit it; but it is not known whether he went there between his first and second imprisonments or not ({vi 28328;28332}Rom. 15:24, 28).

Strong’s Dictionary of Greek Words:

Number:
4681 (find all occurrences in KJV Bible)
Greek:
Σπανία
Transliteration:
Spania
Phonic:
span-ee’-ah
Meaning:
probably of foreign origin; Spania, a region of Europe
KJV Usage:
Spain

Jackson’s Dictionary of Scripture Proper Names:

scarceness (?)

Potts’ Bible Proper Names:

Rabbit; rare; precious; land of rabbits:―a region of Europe, Rom. 15:24. {Cuniculus}