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Farm Coins are the basic currency in FarmVille. Coins can be earned by harvesting crops, trees and animals, as well as being a reward for earning ribbons. Farmers may also use real-life money to buy extra coins. Coins can be used to buy items at the market, including seeds, trees, animals, decorations, buildings, farm expansions and more. Coins are not required to send gifts to neighbors.

Some of the fastest ways of earning coins (In terms of coins per square per day) are:

A Dairy Farm filled with 40 Belted Cows produces 120,000 coins per square per day
A Chicken Coop filled with 50 Level65+ Chickens produces 3200 coins per square per day
A Belted Cow produces 3000 coins per square per day
A Peach Palm Tree produces 137 coins per day per square
A Calf produces 80 coins per square per day
Acai Trees produce 79 coins per square per day
Ornament Trees I and II, along with the Maple Tree, produce produces 75 coins per square per day
Super Berries, which are no longer available, produced 56.25 coins per square per day
A Grey Goose produces 50 coins per square per day
A Pub Cat produces 86 coins per square per day

Coins are different from FarmVille Cash. FarmVille Cash can be used to buy different things, although there is sometimes an option of spending either coins or cash. Because the primary source of FarmVille Cash income is by spending real-life money, it is often extra items that are only available for FarmVille Cash, as these are reserved for farmers who will pay real-life money.