Eceran (bahasa Inggris: retail) adalah salah satu cara pemasaran produk meliputi semua kegiatan yang melibatkan penjualan barang secara langsung ke konsumen akhir untuk penggunaan pribadi dan bukan bisnis. Organisasi ataupun seseorang yang menjalankan bisnis ini disebut sebagai pengecer. Pada praktiknya pengecer melakukan pembelian barang ataupun produk dalam jumlah besar dari produsen, ataupun pengimpor baik secara langsung ataupun melalui grosir, untuk kemudian dijual kembali dalam jumlah kecil. Istilah lain yang juga digunakan untuk merujuk pemasaran "eceran" yaitu "ketengan", "peruncitan", atau "ritel".
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